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-rw-r--r--src/corelib/kernel/kernel.pri3
-rw-r--r--src/corelib/kernel/qabstractitemmodel.cpp3454
-rw-r--r--src/corelib/kernel/qabstractitemmodel.h412
-rw-r--r--src/corelib/kernel/qabstractitemmodel_p.h176
4 files changed, 0 insertions, 4045 deletions
diff --git a/src/corelib/kernel/kernel.pri b/src/corelib/kernel/kernel.pri
index 8b69d771b7..b67d60bfff 100644
--- a/src/corelib/kernel/kernel.pri
+++ b/src/corelib/kernel/kernel.pri
@@ -2,8 +2,6 @@
HEADERS += \
kernel/qabstracteventdispatcher.h \
- kernel/qabstractitemmodel.h \
- kernel/qabstractitemmodel_p.h \
kernel/qbasictimer.h \
kernel/qeventloop.h\
kernel/qpointer.h \
@@ -42,7 +40,6 @@ HEADERS += \
SOURCES += \
kernel/qabstracteventdispatcher.cpp \
- kernel/qabstractitemmodel.cpp \
kernel/qbasictimer.cpp \
kernel/qeventloop.cpp \
kernel/qcoreapplication.cpp \
diff --git a/src/corelib/kernel/qabstractitemmodel.cpp b/src/corelib/kernel/qabstractitemmodel.cpp
deleted file mode 100644
index 99455371ae..0000000000
--- a/src/corelib/kernel/qabstractitemmodel.cpp
+++ /dev/null
@@ -1,3454 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** This file may be used under the terms of the GNU Lesser General Public
-** License version 2.1 as published by the Free Software Foundation and
-** appearing in the file LICENSE.LGPL included in the packaging of this
-** file. Please review the following information to ensure the GNU Lesser
-** General Public License version 2.1 requirements will be met:
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qabstractitemmodel.h"
-#include <private/qabstractitemmodel_p.h>
-#include <qdatastream.h>
-#include <qstringlist.h>
-#include <qsize.h>
-#include <qmimedata.h>
-#include <qdebug.h>
-#include <qvector.h>
-#include <qstack.h>
-#include <qbitarray.h>
-
-#include <limits.h>
-
-QT_BEGIN_NAMESPACE
-
-QPersistentModelIndexData *QPersistentModelIndexData::create(const QModelIndex &index)
-{
- Q_ASSERT(index.isValid()); // we will _never_ insert an invalid index in the list
- QPersistentModelIndexData *d = 0;
- QAbstractItemModel *model = const_cast<QAbstractItemModel *>(index.model());
- QHash<QModelIndex, QPersistentModelIndexData *> &indexes = model->d_func()->persistent.indexes;
- const QHash<QModelIndex, QPersistentModelIndexData *>::iterator it = indexes.find(index);
- if (it != indexes.end()) {
- d = (*it);
- } else {
- d = new QPersistentModelIndexData(index);
- indexes.insert(index, d);
- }
- Q_ASSERT(d);
- return d;
-}
-
-void QPersistentModelIndexData::destroy(QPersistentModelIndexData *data)
-{
- Q_ASSERT(data);
- Q_ASSERT(data->ref.load() == 0);
- QAbstractItemModel *model = const_cast<QAbstractItemModel *>(data->model);
- // a valid persistent model index with a null model pointer can only happen if the model was destroyed
- if (model) {
- QAbstractItemModelPrivate *p = model->d_func();
- Q_ASSERT(p);
- p->removePersistentIndexData(data);
- }
- delete data;
-}
-
-/*!
- \class QPersistentModelIndex
-
- \brief The QPersistentModelIndex class is used to locate data in a data model.
-
- \ingroup model-view
-
- A QPersistentModelIndex is a model index that can be stored by an
- application, and later used to access information in a model.
- Unlike the QModelIndex class, it is safe to store a
- QPersistentModelIndex since the model will ensure that references
- to items will continue to be valid as long as they can be accessed
- by the model.
-
- It is good practice to check that persistent model indexes are valid
- before using them.
-
- \sa {Model/View Programming}, QModelIndex, QAbstractItemModel
-*/
-
-
-/*!
- \fn QPersistentModelIndex::QPersistentModelIndex()
-
- \internal
-*/
-
-QPersistentModelIndex::QPersistentModelIndex()
- : d(0)
-{
-}
-
-/*!
- \fn QPersistentModelIndex::QPersistentModelIndex(const QPersistentModelIndex &other)
-
- Creates a new QPersistentModelIndex that is a copy of the \a other persistent
- model index.
-*/
-
-QPersistentModelIndex::QPersistentModelIndex(const QPersistentModelIndex &other)
- : d(other.d)
-{
- if (d) d->ref.ref();
-}
-
-/*!
- Creates a new QPersistentModelIndex that is a copy of the model \a index.
-*/
-
-QPersistentModelIndex::QPersistentModelIndex(const QModelIndex &index)
- : d(0)
-{
- if (index.isValid()) {
- d = QPersistentModelIndexData::create(index);
- d->ref.ref();
- }
-}
-
-/*!
- \fn QPersistentModelIndex::~QPersistentModelIndex()
-
- \internal
-*/
-
-QPersistentModelIndex::~QPersistentModelIndex()
-{
- if (d && !d->ref.deref()) {
- QPersistentModelIndexData::destroy(d);
- d = 0;
- }
-}
-
-/*!
- Returns true if this persistent model index is equal to the \a other
- persistent model index; otherwise returns false.
-
- All values in the persistent model index are used when comparing
- with another persistent model index.
-*/
-
-bool QPersistentModelIndex::operator==(const QPersistentModelIndex &other) const
-{
- if (d && other.d)
- return d->index == other.d->index;
- return d == other.d;
-}
-
-/*!
- \since 4.1
-
- Returns true if this persistent model index is smaller than the \a other
- persistent model index; otherwise returns false.
-
- All values in the persistent model index are used when comparing
- with another persistent model index.
-*/
-
-bool QPersistentModelIndex::operator<(const QPersistentModelIndex &other) const
-{
- if (d && other.d)
- return d->index < other.d->index;
-
- return d < other.d;
-}
-
-/*!
- \fn bool QPersistentModelIndex::operator!=(const QPersistentModelIndex &other) const
- \since 4.2
-
- Returns true if this persistent model index is not equal to the \a
- other persistent model index; otherwise returns false.
-*/
-
-/*!
- Sets the persistent model index to refer to the same item in a model
- as the \a other persistent model index.
-*/
-
-QPersistentModelIndex &QPersistentModelIndex::operator=(const QPersistentModelIndex &other)
-{
- if (d == other.d)
- return *this;
- if (d && !d->ref.deref())
- QPersistentModelIndexData::destroy(d);
- d = other.d;
- if (d) d->ref.ref();
- return *this;
-}
-
-/*!
- Sets the persistent model index to refer to the same item in a model
- as the \a other model index.
-*/
-
-QPersistentModelIndex &QPersistentModelIndex::operator=(const QModelIndex &other)
-{
- if (d && !d->ref.deref())
- QPersistentModelIndexData::destroy(d);
- if (other.isValid()) {
- d = QPersistentModelIndexData::create(other);
- if (d) d->ref.ref();
- } else {
- d = 0;
- }
- return *this;
-}
-
-/*!
- \fn QPersistentModelIndex::operator const QModelIndex&() const
-
- Cast operator that returns a const QModelIndex&.
-*/
-
-QPersistentModelIndex::operator const QModelIndex&() const
-{
- static const QModelIndex invalid;
- if (d)
- return d->index;
- return invalid;
-}
-
-/*!
- \fn bool QPersistentModelIndex::operator==(const QModelIndex &other) const
-
- Returns true if this persistent model index refers to the same location as
- the \a other model index; otherwise returns false.
-
- All values in the persistent model index are used when comparing with
- another model index.
-*/
-
-bool QPersistentModelIndex::operator==(const QModelIndex &other) const
-{
- if (d)
- return d->index == other;
- return !other.isValid();
-}
-
-/*!
- \fn bool QPersistentModelIndex::operator!=(const QModelIndex &other) const
-
- Returns true if this persistent model index does not refer to the same
- location as the \a other model index; otherwise returns false.
-*/
-
-bool QPersistentModelIndex::operator!=(const QModelIndex &other) const
-{
- if (d)
- return d->index != other;
- return other.isValid();
-}
-
-/*!
- \fn int QPersistentModelIndex::row() const
-
- Returns the row this persistent model index refers to.
-*/
-
-int QPersistentModelIndex::row() const
-{
- if (d)
- return d->index.row();
- return -1;
-}
-
-/*!
- \fn int QPersistentModelIndex::column() const
-
- Returns the column this persistent model index refers to.
-*/
-
-int QPersistentModelIndex::column() const
-{
- if (d)
- return d->index.column();
- return -1;
-}
-
-/*!
- \fn void *QPersistentModelIndex::internalPointer() const
-
- \internal
-
- Returns a \c{void} \c{*} pointer used by the model to associate the index with
- the internal data structure.
-*/
-
-void *QPersistentModelIndex::internalPointer() const
-{
- if (d)
- return d->index.internalPointer();
- return 0;
-}
-
-/*!
- \fn void *QPersistentModelIndex::internalId() const
-
- \internal
-
- Returns a \c{qint64} used by the model to associate the index with
- the internal data structure.
-*/
-
-qint64 QPersistentModelIndex::internalId() const
-{
- if (d)
- return d->index.internalId();
- return 0;
-}
-
-/*!
- Returns the parent QModelIndex for this persistent index, or an invalid
- QModelIndex if it has no parent.
-
- \sa child() sibling() model()
-*/
-QModelIndex QPersistentModelIndex::parent() const
-{
- if (d)
- return d->index.parent();
- return QModelIndex();
-}
-
-/*!
- Returns the sibling at \a row and \a column or an invalid QModelIndex if
- there is no sibling at this position.
-
- \sa parent() child()
-*/
-
-QModelIndex QPersistentModelIndex::sibling(int row, int column) const
-{
- if (d)
- return d->index.sibling(row, column);
- return QModelIndex();
-}
-
-/*!
- Returns the child of the model index that is stored in the given \a row
- and \a column.
-
- \sa parent() sibling()
-*/
-
-QModelIndex QPersistentModelIndex::child(int row, int column) const
-{
- if (d)
- return d->index.child(row, column);
- return QModelIndex();
-}
-
-/*!
- Returns the data for the given \a role for the item referred to by the
- index.
-
- \sa Qt::ItemDataRole, QAbstractItemModel::setData()
-*/
-QVariant QPersistentModelIndex::data(int role) const
-{
- if (d)
- return d->index.data(role);
- return QVariant();
-}
-
-/*!
- \since 4.2
-
- Returns the flags for the item referred to by the index.
-*/
-Qt::ItemFlags QPersistentModelIndex::flags() const
-{
- if (d)
- return d->index.flags();
- return 0;
-}
-
-/*!
- Returns the model that the index belongs to.
-*/
-const QAbstractItemModel *QPersistentModelIndex::model() const
-{
- if (d)
- return d->index.model();
- return 0;
-}
-
-/*!
- \fn bool QPersistentModelIndex::isValid() const
-
- Returns true if this persistent model index is valid; otherwise returns
- false.
-
- A valid index belongs to a model, and has non-negative row and column
- numbers.
-
- \sa model(), row(), column()
-*/
-
-bool QPersistentModelIndex::isValid() const
-{
- return d && d->index.isValid();
-}
-
-#ifndef QT_NO_DEBUG_STREAM
-QDebug operator<<(QDebug dbg, const QModelIndex &idx)
-{
-#ifndef Q_BROKEN_DEBUG_STREAM
- dbg.nospace() << "QModelIndex(" << idx.row() << ',' << idx.column()
- << ',' << idx.internalPointer() << ',' << idx.model() << ')';
- return dbg.space();
-#else
- qWarning("This compiler doesn't support streaming QModelIndex to QDebug");
- return dbg;
- Q_UNUSED(idx);
-#endif
-}
-
-QDebug operator<<(QDebug dbg, const QPersistentModelIndex &idx)
-{
- if (idx.d)
- dbg << idx.d->index;
- else
- dbg << QModelIndex();
- return dbg;
-}
-#endif
-
-class QEmptyItemModel : public QAbstractItemModel
-{
-public:
- explicit QEmptyItemModel(QObject *parent = 0) : QAbstractItemModel(parent) {}
- QModelIndex index(int, int, const QModelIndex &) const { return QModelIndex(); }
- QModelIndex parent(const QModelIndex &) const { return QModelIndex(); }
- int rowCount(const QModelIndex &) const { return 0; }
- int columnCount(const QModelIndex &) const { return 0; }
- bool hasChildren(const QModelIndex &) const { return false; }
- QVariant data(const QModelIndex &, int) const { return QVariant(); }
-};
-
-Q_GLOBAL_STATIC(QEmptyItemModel, qEmptyModel)
-
-QAbstractItemModel *QAbstractItemModelPrivate::staticEmptyModel()
-{
- return qEmptyModel();
-}
-
-namespace {
- struct DefaultRoleNames : public QHash<int, QByteArray>
- {
- DefaultRoleNames() {
- (*this)[Qt::DisplayRole] = "display";
- (*this)[Qt::DecorationRole] = "decoration";
- (*this)[Qt::EditRole] = "edit";
- (*this)[Qt::ToolTipRole] = "toolTip";
- (*this)[Qt::StatusTipRole] = "statusTip";
- (*this)[Qt::WhatsThisRole] = "whatsThis";
- }
- };
-}
-
-Q_GLOBAL_STATIC(DefaultRoleNames, qDefaultRoleNames)
-
-const QHash<int,QByteArray> &QAbstractItemModelPrivate::defaultRoleNames()
-{
- return *qDefaultRoleNames();
-}
-
-
-static uint typeOfVariant(const QVariant &value)
-{
- //return 0 for integer, 1 for floating point and 2 for other
- switch (value.userType()) {
- case QVariant::Bool:
- case QVariant::Int:
- case QVariant::UInt:
- case QVariant::LongLong:
- case QVariant::ULongLong:
- case QVariant::Char:
- case QMetaType::Short:
- case QMetaType::UShort:
- case QMetaType::UChar:
- case QMetaType::ULong:
- case QMetaType::Long:
- return 0;
- case QVariant::Double:
- case QMetaType::Float:
- return 1;
- default:
- return 2;
- }
-}
-
-/*!
- \internal
- return true if \a value contains a numerical type
-
- This function is used by our Q{Tree,Widget,Table}WidgetModel classes to sort.
-*/
-bool QAbstractItemModelPrivate::variantLessThan(const QVariant &v1, const QVariant &v2)
-{
- switch(qMax(typeOfVariant(v1), typeOfVariant(v2)))
- {
- case 0: //integer type
- return v1.toLongLong() < v2.toLongLong();
- case 1: //floating point
- return v1.toReal() < v2.toReal();
- default:
- return v1.toString().localeAwareCompare(v2.toString()) < 0;
- }
-}
-
-void QAbstractItemModelPrivate::removePersistentIndexData(QPersistentModelIndexData *data)
-{
- if (data->index.isValid()) {
- int removed = persistent.indexes.remove(data->index);
- Q_ASSERT_X(removed == 1, "QPersistentModelIndex::~QPersistentModelIndex",
- "persistent model indexes corrupted"); //maybe the index was somewhat invalid?
- // This assert may happen if the model use changePersistentIndex in a way that could result on two
- // QPersistentModelIndex pointing to the same index.
- Q_UNUSED(removed);
- }
- // make sure our optimization still works
- for (int i = persistent.moved.count() - 1; i >= 0; --i) {
- int idx = persistent.moved[i].indexOf(data);
- if (idx >= 0)
- persistent.moved[i].remove(idx);
- }
- // update the references to invalidated persistent indexes
- for (int i = persistent.invalidated.count() - 1; i >= 0; --i) {
- int idx = persistent.invalidated[i].indexOf(data);
- if (idx >= 0)
- persistent.invalidated[i].remove(idx);
- }
-
-}
-
-void QAbstractItemModelPrivate::rowsAboutToBeInserted(const QModelIndex &parent,
- int first, int last)
-{
- Q_Q(QAbstractItemModel);
- Q_UNUSED(last);
- QVector<QPersistentModelIndexData *> persistent_moved;
- if (first < q->rowCount(parent)) {
- for (QHash<QModelIndex, QPersistentModelIndexData *>::const_iterator it = persistent.indexes.constBegin();
- it != persistent.indexes.constEnd(); ++it) {
- QPersistentModelIndexData *data = *it;
- const QModelIndex &index = data->index;
- if (index.row() >= first && index.isValid() && index.parent() == parent) {
- persistent_moved.append(data);
- }
- }
- }
- persistent.moved.push(persistent_moved);
-}
-
-void QAbstractItemModelPrivate::rowsInserted(const QModelIndex &parent,
- int first, int last)
-{
- QVector<QPersistentModelIndexData *> persistent_moved = persistent.moved.pop();
- int count = (last - first) + 1; // it is important to only use the delta, because the change could be nested
- for (QVector<QPersistentModelIndexData *>::const_iterator it = persistent_moved.constBegin();
- it != persistent_moved.constEnd(); ++it) {
- QPersistentModelIndexData *data = *it;
- QModelIndex old = data->index;
- persistent.indexes.erase(persistent.indexes.find(old));
- data->index = q_func()->index(old.row() + count, old.column(), parent);
- if (data->index.isValid()) {
- persistent.insertMultiAtEnd(data->index, data);
- } else {
- qWarning() << "QAbstractItemModel::endInsertRows: Invalid index (" << old.row() + count << ',' << old.column() << ") in model" << q_func();
- }
- }
-}
-
-void QAbstractItemModelPrivate::itemsAboutToBeMoved(const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation orientation)
-{
- QVector<QPersistentModelIndexData *> persistent_moved_explicitly;
- QVector<QPersistentModelIndexData *> persistent_moved_in_source;
- QVector<QPersistentModelIndexData *> persistent_moved_in_destination;
-
- QHash<QModelIndex, QPersistentModelIndexData *>::const_iterator it;
- const QHash<QModelIndex, QPersistentModelIndexData *>::const_iterator begin = persistent.indexes.constBegin();
- const QHash<QModelIndex, QPersistentModelIndexData *>::const_iterator end = persistent.indexes.constEnd();
-
- const bool sameParent = (srcParent == destinationParent);
- const bool movingUp = (srcFirst > destinationChild);
-
- for ( it = begin; it != end; ++it) {
- QPersistentModelIndexData *data = *it;
- const QModelIndex &index = data->index;
- const QModelIndex &parent = index.parent();
- const bool isSourceIndex = (parent == srcParent);
- const bool isDestinationIndex = (parent == destinationParent);
-
- int childPosition;
- if (orientation == Qt::Vertical)
- childPosition = index.row();
- else
- childPosition = index.column();
-
- if (!index.isValid() || !(isSourceIndex || isDestinationIndex ) )
- continue;
-
- if (!sameParent && isDestinationIndex) {
- if (childPosition >= destinationChild)
- persistent_moved_in_destination.append(data);
- continue;
- }
-
- if (sameParent && movingUp && childPosition < destinationChild)
- continue;
-
- if (sameParent && !movingUp && childPosition < srcFirst )
- continue;
-
- if (!sameParent && childPosition < srcFirst)
- continue;
-
- if (sameParent && (childPosition > srcLast) && (childPosition >= destinationChild ))
- continue;
-
- if ((childPosition <= srcLast) && (childPosition >= srcFirst)) {
- persistent_moved_explicitly.append(data);
- } else {
- persistent_moved_in_source.append(data);
- }
- }
- persistent.moved.push(persistent_moved_explicitly);
- persistent.moved.push(persistent_moved_in_source);
- persistent.moved.push(persistent_moved_in_destination);
-}
-
-/*!
- \internal
-
- Moves persistent indexes \a indexes by amount \a change. The change will be either a change in row value or a change in
- column value depending on the value of \a orientation. The indexes may also be moved to a different parent if \a parent
- differs from the existing parent for the index.
-*/
-void QAbstractItemModelPrivate::movePersistentIndexes(QVector<QPersistentModelIndexData *> indexes, int change, const QModelIndex &parent, Qt::Orientation orientation)
-{
- QVector<QPersistentModelIndexData *>::const_iterator it;
- const QVector<QPersistentModelIndexData *>::const_iterator begin = indexes.constBegin();
- const QVector<QPersistentModelIndexData *>::const_iterator end = indexes.constEnd();
-
- for (it = begin; it != end; ++it)
- {
- QPersistentModelIndexData *data = *it;
-
- int row = data->index.row();
- int column = data->index.column();
-
- if (Qt::Vertical == orientation)
- row += change;
- else
- column += change;
-
- persistent.indexes.erase(persistent.indexes.find(data->index));
- data->index = q_func()->index(row, column, parent);
- if (data->index.isValid()) {
- persistent.insertMultiAtEnd(data->index, data);
- } else {
- qWarning() << "QAbstractItemModel::endMoveRows: Invalid index (" << row << "," << column << ") in model" << q_func();
- }
- }
-}
-
-void QAbstractItemModelPrivate::itemsMoved(const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation orientation)
-{
- QVector<QPersistentModelIndexData *> moved_in_destination = persistent.moved.pop();
- QVector<QPersistentModelIndexData *> moved_in_source = persistent.moved.pop();
- QVector<QPersistentModelIndexData *> moved_explicitly = persistent.moved.pop();
-
- const bool sameParent = (sourceParent == destinationParent);
- const bool movingUp = (sourceFirst > destinationChild);
-
- const int explicit_change = (!sameParent || movingUp) ? destinationChild - sourceFirst : destinationChild - sourceLast - 1 ;
- const int source_change = (!sameParent || !movingUp) ? -1*(sourceLast - sourceFirst + 1) : sourceLast - sourceFirst + 1 ;
- const int destination_change = sourceLast - sourceFirst + 1;
-
- movePersistentIndexes(moved_explicitly, explicit_change, destinationParent, orientation);
- movePersistentIndexes(moved_in_source, source_change, sourceParent, orientation);
- movePersistentIndexes(moved_in_destination, destination_change, destinationParent, orientation);
-}
-
-void QAbstractItemModelPrivate::rowsAboutToBeRemoved(const QModelIndex &parent,
- int first, int last)
-{
- QVector<QPersistentModelIndexData *> persistent_moved;
- QVector<QPersistentModelIndexData *> persistent_invalidated;
- // find the persistent indexes that are affected by the change, either by being in the removed subtree
- // or by being on the same level and below the removed rows
- for (QHash<QModelIndex, QPersistentModelIndexData *>::const_iterator it = persistent.indexes.constBegin();
- it != persistent.indexes.constEnd(); ++it) {
- QPersistentModelIndexData *data = *it;
- bool level_changed = false;
- QModelIndex current = data->index;
- while (current.isValid()) {
- QModelIndex current_parent = current.parent();
- if (current_parent == parent) { // on the same level as the change
- if (!level_changed && current.row() > last) // below the removed rows
- persistent_moved.append(data);
- else if (current.row() <= last && current.row() >= first) // in the removed subtree
- persistent_invalidated.append(data);
- break;
- }
- current = current_parent;
- level_changed = true;
- }
- }
-
- persistent.moved.push(persistent_moved);
- persistent.invalidated.push(persistent_invalidated);
-}
-
-void QAbstractItemModelPrivate::rowsRemoved(const QModelIndex &parent,
- int first, int last)
-{
- QVector<QPersistentModelIndexData *> persistent_moved = persistent.moved.pop();
- int count = (last - first) + 1; // it is important to only use the delta, because the change could be nested
- for (QVector<QPersistentModelIndexData *>::const_iterator it = persistent_moved.constBegin();
- it != persistent_moved.constEnd(); ++it) {
- QPersistentModelIndexData *data = *it;
- QModelIndex old = data->index;
- persistent.indexes.erase(persistent.indexes.find(old));
- data->index = q_func()->index(old.row() - count, old.column(), parent);
- if (data->index.isValid()) {
- persistent.insertMultiAtEnd(data->index, data);
- } else {
- qWarning() << "QAbstractItemModel::endRemoveRows: Invalid index (" << old.row() - count << ',' << old.column() << ") in model" << q_func();
- }
- }
- QVector<QPersistentModelIndexData *> persistent_invalidated = persistent.invalidated.pop();
- for (QVector<QPersistentModelIndexData *>::const_iterator it = persistent_invalidated.constBegin();
- it != persistent_invalidated.constEnd(); ++it) {
- QPersistentModelIndexData *data = *it;
- persistent.indexes.erase(persistent.indexes.find(data->index));
- data->index = QModelIndex();
- data->model = 0;
- }
-}
-
-void QAbstractItemModelPrivate::columnsAboutToBeInserted(const QModelIndex &parent,
- int first, int last)
-{
- Q_Q(QAbstractItemModel);
- Q_UNUSED(last);
- QVector<QPersistentModelIndexData *> persistent_moved;
- if (first < q->columnCount(parent)) {
- for (QHash<QModelIndex, QPersistentModelIndexData *>::const_iterator it = persistent.indexes.constBegin();
- it != persistent.indexes.constEnd(); ++it) {
- QPersistentModelIndexData *data = *it;
- const QModelIndex &index = data->index;
- if (index.column() >= first && index.isValid() && index.parent() == parent)
- persistent_moved.append(data);
- }
- }
- persistent.moved.push(persistent_moved);
-}
-
-void QAbstractItemModelPrivate::columnsInserted(const QModelIndex &parent,
- int first, int last)
-{
- QVector<QPersistentModelIndexData *> persistent_moved = persistent.moved.pop();
- int count = (last - first) + 1; // it is important to only use the delta, because the change could be nested
- for (QVector<QPersistentModelIndexData *>::const_iterator it = persistent_moved.constBegin();
- it != persistent_moved.constEnd(); ++it) {
- QPersistentModelIndexData *data = *it;
- QModelIndex old = data->index;
- persistent.indexes.erase(persistent.indexes.find(old));
- data->index = q_func()->index(old.row(), old.column() + count, parent);
- if (data->index.isValid()) {
- persistent.insertMultiAtEnd(data->index, data);
- } else {
- qWarning() << "QAbstractItemModel::endInsertColumns: Invalid index (" << old.row() << ',' << old.column() + count << ") in model" << q_func();
- }
- }
-}
-
-void QAbstractItemModelPrivate::columnsAboutToBeRemoved(const QModelIndex &parent,
- int first, int last)
-{
- QVector<QPersistentModelIndexData *> persistent_moved;
- QVector<QPersistentModelIndexData *> persistent_invalidated;
- // find the persistent indexes that are affected by the change, either by being in the removed subtree
- // or by being on the same level and to the right of the removed columns
- for (QHash<QModelIndex, QPersistentModelIndexData *>::const_iterator it = persistent.indexes.constBegin();
- it != persistent.indexes.constEnd(); ++it) {
- QPersistentModelIndexData *data = *it;
- bool level_changed = false;
- QModelIndex current = data->index;
- while (current.isValid()) {
- QModelIndex current_parent = current.parent();
- if (current_parent == parent) { // on the same level as the change
- if (!level_changed && current.column() > last) // right of the removed columns
- persistent_moved.append(data);
- else if (current.column() <= last && current.column() >= first) // in the removed subtree
- persistent_invalidated.append(data);
- break;
- }
- current = current_parent;
- level_changed = true;
- }
- }
-
- persistent.moved.push(persistent_moved);
- persistent.invalidated.push(persistent_invalidated);
-
-}
-
-void QAbstractItemModelPrivate::columnsRemoved(const QModelIndex &parent,
- int first, int last)
-{
- QVector<QPersistentModelIndexData *> persistent_moved = persistent.moved.pop();
- int count = (last - first) + 1; // it is important to only use the delta, because the change could be nested
- for (QVector<QPersistentModelIndexData *>::const_iterator it = persistent_moved.constBegin();
- it != persistent_moved.constEnd(); ++it) {
- QPersistentModelIndexData *data = *it;
- QModelIndex old = data->index;
- persistent.indexes.erase(persistent.indexes.find(old));
- data->index = q_func()->index(old.row(), old.column() - count, parent);
- if (data->index.isValid()) {
- persistent.insertMultiAtEnd(data->index, data);
- } else {
- qWarning() << "QAbstractItemModel::endRemoveColumns: Invalid index (" << old.row() << ',' << old.column() - count << ") in model" << q_func();
- }
- }
- QVector<QPersistentModelIndexData *> persistent_invalidated = persistent.invalidated.pop();
- for (QVector<QPersistentModelIndexData *>::const_iterator it = persistent_invalidated.constBegin();
- it != persistent_invalidated.constEnd(); ++it) {
- QPersistentModelIndexData *data = *it;
- persistent.indexes.erase(persistent.indexes.find(data->index));
- data->index = QModelIndex();
- data->model = 0;
- }
-}
-
-/*!
- \class QModelIndex
-
- \brief The QModelIndex class is used to locate data in a data model.
-
- \ingroup model-view
-
-
- This class is used as an index into item models derived from
- QAbstractItemModel. The index is used by item views, delegates, and
- selection models to locate an item in the model.
-
- New QModelIndex objects are created by the model using the
- QAbstractItemModel::createIndex() function. An \e invalid model index can
- be constructed with the QModelIndex constructor. Invalid indexes are often
- used as parent indexes when referring to top-level items in a model.
-
- Model indexes refer to items in models, and contain all the information
- required to specify their locations in those models. Each index is located
- in a given row and column, and may have a parent index; use row(),
- column(), and parent() to obtain this information. Each top-level item in a
- model is represented by a model index that does not have a parent index -
- in this case, parent() will return an invalid model index, equivalent to an
- index constructed with the zero argument form of the QModelIndex()
- constructor.
-
- To obtain a model index that refers to an existing item in a model, call
- QAbstractItemModel::index() with the required row and column values, and
- the model index of the parent. When referring to top-level items in a
- model, supply QModelIndex() as the parent index.
-
- The model() function returns the model that the index references as a
- QAbstractItemModel. The child() function is used to examine items held
- under the index in the model. The sibling() function allows you to traverse
- items in the model on the same level as the index.
-
- \note Model indexes should be used immediately and then discarded. You
- should not rely on indexes to remain valid after calling model functions
- that change the structure of the model or delete items. If you need to
- keep a model index over time use a QPersistentModelIndex.
-
- \sa {Model/View Programming}, QPersistentModelIndex, QAbstractItemModel
-*/
-
-/*!
- \fn QModelIndex::QModelIndex()
-
- Creates a new empty model index. This type of model index is used to
- indicate that the position in the model is invalid.
-
- \sa isValid() QAbstractItemModel
-*/
-
-/*!
- \fn QModelIndex::QModelIndex(int row, int column, void *data, const QAbstractItemModel *model)
-
- \internal
-
- Creates a new model index at the given \a row and \a column,
- pointing to some \a data.
-*/
-
-/*!
- \fn QModelIndex::QModelIndex(const QModelIndex &other)
-
- Creates a new model index that is a copy of the \a other model
- index.
-*/
-
-/*!
- \fn QModelIndex::~QModelIndex()
-
- Destroys the model index.
-*/
-
-/*!
- \fn int QModelIndex::row() const
-
- Returns the row this model index refers to.
-*/
-
-
-/*!
- \fn int QModelIndex::column() const
-
- Returns the column this model index refers to.
-*/
-
-
-/*!
- \fn void *QModelIndex::internalPointer() const
-
- Returns a \c{void} \c{*} pointer used by the model to associate
- the index with the internal data structure.
-
- \sa QAbstractItemModel::createIndex()
-*/
-
-/*!
- \fn void *QModelIndex::internalId() const
-
- Returns a \c{qint64} used by the model to associate
- the index with the internal data structure.
-
- \sa QAbstractItemModel::createIndex()
-*/
-
-/*!
- \fn bool QModelIndex::isValid() const
-
- Returns true if this model index is valid; otherwise returns false.
-
- A valid index belongs to a model, and has non-negative row and column
- numbers.
-
- \sa model(), row(), column()
-*/
-
-/*!
- \fn const QAbstractItemModel *QModelIndex::model() const
-
- Returns a pointer to the model containing the item that this index
- refers to.
-
- A const pointer to the model is returned because calls to non-const
- functions of the model might invalidate the model index and possibly
- crash your application.
-*/
-
-/*!
- \fn QModelIndex QModelIndex::sibling(int row, int column) const
-
- Returns the sibling at \a row and \a column. If there is no sibling at this
- position, an invalid QModelIndex is returned.
-
- \sa parent(), child()
-*/
-
-/*!
- \fn QModelIndex QModelIndex::child(int row, int column) const
-
- Returns the child of the model index that is stored in the given \a row and
- \a column.
-
- \note This function does not work for an invalid model index which is often
- used as the root index.
-
- \sa parent(), sibling()
-*/
-
-/*!
- \fn QVariant QModelIndex::data(int role) const
-
- Returns the data for the given \a role for the item referred to by the
- index.
-*/
-
-/*!
- \fn Qt::ItemFlags QModelIndex::flags() const
- \since 4.2
-
- Returns the flags for the item referred to by the index.
-*/
-
-/*!
- \fn bool QModelIndex::operator==(const QModelIndex &other) const
-
- Returns true if this model index refers to the same location as the
- \a other model index; otherwise returns false.
-
- All values in the model index are used when comparing with another model
- index.
-*/
-
-
-/*!
- \fn bool QModelIndex::operator!=(const QModelIndex &other) const
-
- Returns true if this model index does not refer to the same location as
- the \a other model index; otherwise returns false.
-*/
-
-
-/*!
- \fn QModelIndex QModelIndex::parent() const
-
- Returns the parent of the model index, or QModelIndex() if it has no
- parent.
-
- \sa child(), sibling(), model()
-*/
-
-/*!
- \class QAbstractItemModel
-
- \brief The QAbstractItemModel class provides the abstract interface for
- item model classes.
-
- \ingroup model-view
-
-
- The QAbstractItemModel class defines the standard interface that item
- models must use to be able to interoperate with other components in the
- model/view architecture. It is not supposed to be instantiated directly.
- Instead, you should subclass it to create new models.
-
- The QAbstractItemModel class is one of the \l{Model/View Classes}
- and is part of Qt's \l{Model/View Programming}{model/view framework}.
-
- If you need a model to use with a QListView or a QTableView, you should
- consider subclassing QAbstractListModel or QAbstractTableModel instead of
- this class.
-
- The underlying data model is exposed to views and delegates as a hierarchy
- of tables. If you do not make use of the hierarchy, then the model is a
- simple table of rows and columns. Each item has a unique index specified by
- a QModelIndex.
-
- \image modelindex-no-parent.png
-
- Every item of data that can be accessed via a model has an associated model
- index. You can obtain this model index using the index() function. Each
- index may have a sibling() index; child items have a parent() index.
-
- Each item has a number of data elements associated with it and they can be
- retrieved by specifying a role (see \l Qt::ItemDataRole) to the model's
- data() function. Data for all available roles can be obtained at the same
- time using the itemData() function.
-
- Data for each role is set using a particular \l Qt::ItemDataRole. Data for
- individual roles are set individually with setData(), or they can be set
- for all roles with setItemData().
-
- Items can be queried with flags() (see \l Qt::ItemFlag) to see if they can
- be selected, dragged, or manipulated in other ways.
-
- If an item has child objects, hasChildren() returns true for the
- corresponding index.
-
- The model has a rowCount() and a columnCount() for each level of the
- hierarchy. Rows and columns can be inserted and removed with insertRows(),
- insertColumns(), removeRows(), and removeColumns().
-
- The model emits signals to indicate changes. For example, dataChanged() is
- emitted whenever items of data made available by the model are changed.
- Changes to the headers supplied by the model cause headerDataChanged() to
- be emitted. If the structure of the underlying data changes, the model can
- emit layoutChanged() to indicate to any attached views that they should
- redisplay any items shown, taking the new structure into account.
-
- The items available through the model can be searched for particular data
- using the match() function.
-
- To sort the model, you can use sort().
-
-
- \section1 Subclassing
-
- \note Some general guidelines for subclassing models are available in the
- \l{Model Subclassing Reference}.
-
- When subclassing QAbstractItemModel, at the very least you must implement
- index(), parent(), rowCount(), columnCount(), and data(). These functions
- are used in all read-only models, and form the basis of editable models.
-
- You can also reimplement hasChildren() to provide special behavior for
- models where the implementation of rowCount() is expensive. This makes it
- possible for models to restrict the amount of data requested by views, and
- can be used as a way to implement lazy population of model data.
-
- To enable editing in your model, you must also implement setData(), and
- reimplement flags() to ensure that \c ItemIsEditable is returned. You can
- also reimplement headerData() and setHeaderData() to control the way the
- headers for your model are presented.
-
- The dataChanged() and headerDataChanged() signals must be emitted
- explicitly when reimplementing the setData() and setHeaderData() functions,
- respectively.
-
- Custom models need to create model indexes for other components to use. To
- do this, call createIndex() with suitable row and column numbers for the
- item, and an identifier for it, either as a pointer or as an integer value.
- The combination of these values must be unique for each item. Custom models
- typically use these unique identifiers in other reimplemented functions to
- retrieve item data and access information about the item's parents and
- children. See the \l{Simple Tree Model Example} for more information about
- unique identifiers.
-
- It is not necessary to support every role defined in Qt::ItemDataRole.
- Depending on the type of data contained within a model, it may only be
- useful to implement the data() function to return valid information for
- some of the more common roles. Most models provide at least a textual
- representation of item data for the Qt::DisplayRole, and well-behaved
- models should also provide valid information for the Qt::ToolTipRole and
- Qt::WhatsThisRole. Supporting these roles enables models to be used with
- standard Qt views. However, for some models that handle highly-specialized
- data, it may be appropriate to provide data only for user-defined roles.
-
- Models that provide interfaces to resizable data structures can provide
- implementations of insertRows(), removeRows(), insertColumns(),and
- removeColumns(). When implementing these functions, it is important to
- notify any connected views about changes to the model's dimensions both
- \e before and \e after they occur:
-
- \list
- \o An insertRows() implementation must call beginInsertRows() \e before
- inserting new rows into the data structure, and endInsertRows()
- \e{immediately afterwards}.
- \o An insertColumns() implementation must call beginInsertColumns()
- \e before inserting new columns into the data structure, and
- endInsertColumns() \e{immediately afterwards}.
- \o A removeRows() implementation must call beginRemoveRows() \e before
- the rows are removed from the data structure, and endRemoveRows()
- \e{immediately afterwards}.
- \o A removeColumns() implementation must call beginRemoveColumns()
- \e before the columns are removed from the data structure, and
- endRemoveColumns() \e{immediately afterwards}.
- \endlist
-
- The \e private signals that these functions emit give attached components
- the chance to take action before any data becomes unavailable. The
- encapsulation of the insert and remove operations with these begin and end
- functions also enables the model to manage \l{QPersistentModelIndex}
- {persistent model indexes} correctly. \bold{If you want selections to be
- handled properly, you must ensure that you call these functions.} If you
- insert or remove an item with children, you do not need to call these
- functions for the child items. In other words, the parent item will take
- care of its child items.
-
- To create models that populate incrementally, you can reimplement
- fetchMore() and canFetchMore(). If the reimplementation of fetchMore() adds
- rows to the model, \l{QAbstractItemModel::}{beginInsertRows()} and
- \l{QAbstractItemModel::}{endInsertRows()} must be called.
-
- \sa {Model Classes}, {Model Subclassing Reference}, QModelIndex,
- QAbstractItemView, {Using drag and drop with item views},
- {Simple DOM Model Example}, {Simple Tree Model Example},
- {Editable Tree Model Example}, {Fetch More Example}
-*/
-
-/*!
- \fn QModelIndex QAbstractItemModel::index(int row, int column, const QModelIndex &parent) const = 0
-
- Returns the index of the item in the model specified by the given \a row,
- \a column and \a parent index.
-
- When reimplementing this function in a subclass, call createIndex() to
- generate model indexes that other components can use to refer to items in
- your model.
-
- \sa createIndex()
-*/
-
-/*!
- \fn bool QAbstractItemModel::insertColumn(int column, const QModelIndex &parent)
-
- Inserts a single column before the given \a column in the child items of
- the \a parent specified.
-
- Returns true if the column is inserted; otherwise returns false.
-
- \sa insertColumns() insertRow() removeColumn()
-*/
-
-/*!
- \fn bool QAbstractItemModel::insertRow(int row, const QModelIndex &parent)
-
- \note The base class implementation of this function does nothing and
- returns false.
-
- Inserts a single row before the given \a row in the child items of the
- \a parent specified.
-
- Returns true if the row is inserted; otherwise returns false.
-
- \sa insertRows() insertColumn() removeRow()
-*/
-
-/*!
- \fn QObject *QAbstractItemModel::parent() const
- \internal
-*/
-
-/*!
- \fn QModelIndex QAbstractItemModel::parent(const QModelIndex &index) const = 0
-
- Returns the parent of the model item with the given \a index. If the item
- has no parent, an invalid QModelIndex is returned.
-
- A common convention used in models that expose tree data structures is that
- only items in the first column have children. For that case, when
- reimplementing this function in a subclass the column of the returned
- QModelIndex would be 0.
-
- When reimplementing this function in a subclass, be careful to avoid
- calling QModelIndex member functions, such as QModelIndex::parent(), since
- indexes belonging to your model will simply call your implementation,
- leading to infinite recursion.
-
- \sa createIndex()
-*/
-
-/*!
- \fn bool QAbstractItemModel::removeColumn(int column, const QModelIndex &parent)
-
- Removes the given \a column from the child items of the \a parent
- specified.
-
- Returns true if the column is removed; otherwise returns false.
-
- \sa removeColumns(), removeRow(), insertColumn()
-*/
-
-/*!
- \fn bool QAbstractItemModel::removeRow(int row, const QModelIndex &parent)
-
- Removes the given \a row from the child items of the \a parent specified.
-
- Returns true if the row is removed; otherwise returns false.
-
- This is a convenience function that calls removeRows(). The
- QAbstractItemModel implementation of removeRows() does nothing.
-
- \sa removeRows(), removeColumn(), insertRow()
-*/
-
-/*!
- \fn void QAbstractItemModel::headerDataChanged(Qt::Orientation orientation, int first, int last)
-
- This signal is emitted whenever a header is changed. The \a orientation
- indicates whether the horizontal or vertical header has changed. The
- sections in the header from the \a first to the \a last need to be updated.
-
- When reimplementing the setHeaderData() function, this signal must be
- emitted explicitly.
-
- If you are changing the number of columns or rows you do not need to emit
- this signal, but use the begin/end functions (refer to the section on
- subclassing in the QAbstractItemModel class description for details).
-
- \sa headerData(), setHeaderData(), dataChanged()
-*/
-
-/*!
- \fn void QAbstractItemModel::layoutAboutToBeChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>())
- \since 4.2
-
- This signal is emitted just before the layout of a model is changed.
- Components connected to this signal use it to adapt to changes in the
- model's layout.
-
- Subclasses should update any persistent model indexes after emitting
- layoutAboutToBeChanged().
-
- The optional @p parents parameter is used to give a more specific notification
- about what parts of the layout of the model are changing. An empty list indicates
- a change to the layout of the entire model.
-
- \sa layoutChanged(), changePersistentIndex()
-*/
-
-/*!
- \fn void QAbstractItemModel::layoutChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>())
-
- This signal is emitted whenever the layout of items exposed by the model
- has changed; for example, when the model has been sorted. When this signal
- is received by a view, it should update the layout of items to reflect this
- change.
-
- When subclassing QAbstractItemModel or QAbstractProxyModel, ensure that you
- emit layoutAboutToBeChanged() before changing the order of items or
- altering the structure of the data you expose to views, and emit
- layoutChanged() after changing the layout.
-
- The optional @p parents parameter is used to give a more specific notification
- about what parts of the layout of the model are changing. An empty list indicates
- a change to the layout of the entire model.
-
- Subclasses should update any persistent model indexes before emitting
- layoutChanged(). In other words, when the structure changes:
-
- \list
- \o emit layoutAboutToBeChanged
- \o Remember the QModelIndex that will change
- \o Update your internal data
- \o Call changePersistentIndex()
- \o emit layoutChanged
- \endlist
-
- \sa layoutAboutToBeChanged(), dataChanged(), headerDataChanged(), modelReset(),
- changePersistentIndex()
-*/
-
-/*!
- Constructs an abstract item model with the given \a parent.
-*/
-QAbstractItemModel::QAbstractItemModel(QObject *parent)
- : QObject(*new QAbstractItemModelPrivate, parent)
-{
-}
-
-/*!
- \internal
-*/
-QAbstractItemModel::QAbstractItemModel(QAbstractItemModelPrivate &dd, QObject *parent)
- : QObject(dd, parent)
-{
-}
-
-/*!
- Destroys the abstract item model.
-*/
-QAbstractItemModel::~QAbstractItemModel()
-{
- d_func()->invalidatePersistentIndexes();
-}
-
-/*!
- \fn QModelIndex QAbstractItemModel::sibling(int row, int column, const QModelIndex &index) const
-
- Returns the sibling at \a row and \a column for the item at \a index, or an
- invalid QModelIndex if there is no sibling at that location.
-
- sibling() is just a convenience function that finds the item's parent, and
- uses it to retrieve the index of the child item in the specified \a row and
- \a column.
-
- \sa index(), QModelIndex::row(), QModelIndex::column()
-*/
-
-
-/*!
- \fn int QAbstractItemModel::rowCount(const QModelIndex &parent) const
-
- Returns the number of rows under the given \a parent. When the parent is
- valid it means that rowCount is returning the number of children of parent.
-
- \note When implementing a table based model, rowCount() should return 0
- when the parent is valid.
-
- \sa columnCount()
-*/
-
-/*!
- \fn int QAbstractItemModel::columnCount(const QModelIndex &parent) const
-
- Returns the number of columns for the children of the given \a parent.
-
- In most subclasses, the number of columns is independent of the \a parent.
-
- For example:
-
- \snippet examples/itemviews/simpledommodel/dommodel.cpp 2
-
- \note When implementing a table based model, columnCount() should return 0
- when the parent is valid.
-
- \sa rowCount()
-*/
-
-/*!
- \fn void QAbstractItemModel::dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QSet<int> &roles = QSet<int>())
-
- This signal is emitted whenever the data in an existing item changes.
-
- If the items are of the same parent, the affected ones are those between
- \a topLeft and \a bottomRight inclusive. If the items do not have the same
- parent, the behavior is undefined.
-
- When reimplementing the setData() function, this signal must be emitted
- explicitly.
-
- The optional roles argument can be used to specify which data roles have actually
- been modified. An empty set in the roles argument means that all roles should be
- considered modified.
-
- \sa headerDataChanged(), setData(), layoutChanged()
-*/
-
-/*!
- \fn void QAbstractItemModel::rowsInserted(const QModelIndex &parent, int start, int end)
-
- This signal is emitted after rows have been inserted into the
- model. The new items are those between \a start and \a end
- inclusive, under the given \a parent item.
-
- \note Components connected to this signal use it to adapt to changes in the
- model's dimensions. It can only be emitted by the QAbstractItemModel
- implementation, and cannot be explicitly emitted in subclass code.
-
- \sa insertRows(), beginInsertRows()
-*/
-
-/*!
- \fn void QAbstractItemModel::rowsAboutToBeInserted(const QModelIndex &parent, int start, int end)
-
- This signal is emitted just before rows are inserted into the model. The
- new items will be positioned between \a start and \a end inclusive, under
- the given \a parent item.
-
- \note Components connected to this signal use it to adapt to changes
- in the model's dimensions. It can only be emitted by the QAbstractItemModel
- implementation, and cannot be explicitly emitted in subclass code.
-
- \sa insertRows(), beginInsertRows()
-*/
-
-/*!
- \fn void QAbstractItemModel::rowsRemoved(const QModelIndex &parent, int start, int end)
-
- This signal is emitted after rows have been removed from the model. The
- removed items are those between \a start and \a end inclusive, under the
- given \a parent item.
-
- \note Components connected to this signal use it to adapt to changes
- in the model's dimensions. It can only be emitted by the QAbstractItemModel
- implementation, and cannot be explicitly emitted in subclass code.
-
- \sa removeRows(), beginRemoveRows()
-*/
-
-/*!
- \fn void QAbstractItemModel::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end)
-
- This signal is emitted just before rows are removed from the model. The
- items that will be removed are those between \a start and \a end inclusive,
- under the given \a parent item.
-
- \note Components connected to this signal use it to adapt to changes
- in the model's dimensions. It can only be emitted by the QAbstractItemModel
- implementation, and cannot be explicitly emitted in subclass code.
-
- \sa removeRows(), beginRemoveRows()
-*/
-
-/*!
- \fn void QAbstractItemModel::rowsMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow)
- \since 4.6
-
- This signal is emitted after rows have been moved within the
- model. The items between \a sourceStart and \a sourceEnd
- inclusive, under the given \a sourceParent item have been moved to \a destinationParent
- starting at the row \a destinationRow.
-
- \bold{Note:} Components connected to this signal use it to adapt to changes
- in the model's dimensions. It can only be emitted by the QAbstractItemModel
- implementation, and cannot be explicitly emitted in subclass code.
-
- \sa beginMoveRows()
-*/
-
-/*!
- \fn void QAbstractItemModel::rowsAboutToBeMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow)
- \since 4.6
-
- This signal is emitted just before rows are moved within the
- model. The items that will be moved are those between \a sourceStart and \a sourceEnd
- inclusive, under the given \a sourceParent item. They will be moved to \a destinationParent
- starting at the row \a destinationRow.
-
- \bold{Note:} Components connected to this signal use it to adapt to changes
- in the model's dimensions. It can only be emitted by the QAbstractItemModel
- implementation, and cannot be explicitly emitted in subclass code.
-
- \sa beginMoveRows()
-*/
-
-/*!
- \fn void QAbstractItemModel::columnsMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn)
- \since 4.6
-
- This signal is emitted after columns have been moved within the
- model. The items between \a sourceStart and \a sourceEnd
- inclusive, under the given \a sourceParent item have been moved to \a destinationParent
- starting at the column \a destinationColumn.
-
- \bold{Note:} Components connected to this signal use it to adapt to changes
- in the model's dimensions. It can only be emitted by the QAbstractItemModel
- implementation, and cannot be explicitly emitted in subclass code.
-
- \sa beginMoveRows()
-*/
-
-/*!
- \fn void QAbstractItemModel::columnsAboutToBeMoved(const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn)
- \since 4.6
-
- This signal is emitted just before columns are moved within the
- model. The items that will be moved are those between \a sourceStart and \a sourceEnd
- inclusive, under the given \a sourceParent item. They will be moved to \a destinationParent
- starting at the column \a destinationColumn.
-
- \bold{Note:} Components connected to this signal use it to adapt to changes
- in the model's dimensions. It can only be emitted by the QAbstractItemModel
- implementation, and cannot be explicitly emitted in subclass code.
-
- \sa beginMoveRows()
-*/
-
-/*!
- \fn void QAbstractItemModel::columnsInserted(const QModelIndex &parent, int start, int end)
-
- This signal is emitted after columns have been inserted into the model. The
- new items are those between \a start and \a end inclusive, under the given
- \a parent item.
-
- \note Components connected to this signal use it to adapt to changes in the
- model's dimensions. It can only be emitted by the QAbstractItemModel
- implementation, and cannot be explicitly emitted in subclass code.
-
- \sa insertColumns(), beginInsertColumns()
-*/
-
-/*!
- \fn void QAbstractItemModel::columnsAboutToBeInserted(const QModelIndex &parent, int start, int end)
-
- This signal is emitted just before columns are inserted into the model. The
- new items will be positioned between \a start and \a end inclusive, under
- the given \a parent item.
-
- \note Components connected to this signal use it to adapt to changes in the
- model's dimensions. It can only be emitted by the QAbstractItemModel
- implementation, and cannot be explicitly emitted in subclass code.
-
- \sa insertColumns(), beginInsertColumns()
-*/
-
-/*!
- \fn void QAbstractItemModel::columnsRemoved(const QModelIndex &parent, int start, int end)
-
- This signal is emitted after columns have been removed from the model.
- The removed items are those between \a start and \a end inclusive,
- under the given \a parent item.
-
- \note Components connected to this signal use it to adapt to changes in
- the model's dimensions. It can only be emitted by the QAbstractItemModel
- implementation, and cannot be explicitly emitted in subclass code.
-
- \sa removeColumns(), beginRemoveColumns()
-*/
-
-/*!
- \fn void QAbstractItemModel::columnsAboutToBeRemoved(const QModelIndex &parent, int start, int end)
-
- This signal is emitted just before columns are removed from the model. The
- items to be removed are those between \a start and \a end inclusive, under
- the given \a parent item.
-
- \note Components connected to this signal use it to adapt to changes in the
- model's dimensions. It can only be emitted by the QAbstractItemModel
- implementation, and cannot be explicitly emitted in subclass code.
-
- \sa removeColumns(), beginRemoveColumns()
-*/
-
-/*!
- Returns true if the model returns a valid QModelIndex for \a row and
- \a column with \a parent, otherwise returns false.
-*/
-bool QAbstractItemModel::hasIndex(int row, int column, const QModelIndex &parent) const
-{
- if (row < 0 || column < 0)
- return false;
- return row < rowCount(parent) && column < columnCount(parent);
-}
-
-
-/*!
- Returns true if \a parent has any children; otherwise returns false.
-
- Use rowCount() on the parent to find out the number of children.
-
- \sa parent() index()
-*/
-bool QAbstractItemModel::hasChildren(const QModelIndex &parent) const
-{
- return (rowCount(parent) > 0) && (columnCount(parent) > 0);
-}
-
-
-/*!
- Returns a map with values for all predefined roles in the model for the
- item at the given \a index.
-
- Reimplement this function if you want to extend the default behavior of
- this function to include custom roles in the map.
-
- \sa Qt::ItemDataRole, data()
-*/
-QMap<int, QVariant> QAbstractItemModel::itemData(const QModelIndex &index) const
-{
- QMap<int, QVariant> roles;
- for (int i = 0; i < Qt::UserRole; ++i) {
- QVariant variantData = data(index, i);
- if (variantData.isValid())
- roles.insert(i, variantData);
- }
- return roles;
-}
-
-/*!
- Sets the \a role data for the item at \a index to \a value.
-
- Returns true if successful; otherwise returns false.
-
- The dataChanged() signal should be emitted if the data was successfully
- set.
-
- The base class implementation returns false. This function and data() must
- be reimplemented for editable models.
-
- \sa Qt::ItemDataRole, data(), itemData()
-*/
-bool QAbstractItemModel::setData(const QModelIndex &index, const QVariant &value, int role)
-{
- Q_UNUSED(index);
- Q_UNUSED(value);
- Q_UNUSED(role);
- return false;
-}
-
-/*!
- \fn QVariant QAbstractItemModel::data(const QModelIndex &index, int role) const = 0
-
- Returns the data stored under the given \a role for the item referred to
- by the \a index.
-
- \note If you do not have a value to return, return an \bold invalid
- QVariant instead of returning 0.
-
- \sa Qt::ItemDataRole, setData(), headerData()
-*/
-
-/*!
- Sets the role data for the item at \a index to the associated value in
- \a roles, for every Qt::ItemDataRole.
-
- Returns true if successful; otherwise returns false.
-
- Roles that are not in \a roles will not be modified.
-
- \sa setData() data() itemData()
-*/
-bool QAbstractItemModel::setItemData(const QModelIndex &index, const QMap<int, QVariant> &roles)
-{
- bool b = true;
- for (QMap<int, QVariant>::ConstIterator it = roles.begin(); it != roles.end(); ++it)
- b = b && setData(index, it.value(), it.key());
- return b;
-}
-
-/*!
- Returns a list of MIME types that can be used to describe a list of model
- indexes.
-
- \sa mimeData()
-*/
-QStringList QAbstractItemModel::mimeTypes() const
-{
- QStringList types;
- types << QLatin1String("application/x-qabstractitemmodeldatalist");
- return types;
-}
-
-/*!
- Returns an object that contains serialized items of data corresponding to
- the list of \a indexes specified. The formats used to describe the encoded
- data is obtained from the mimeTypes() function.
-
- If the list of indexes is empty, or there are no supported MIME types, 0 is
- returned rather than a serialized empty list.
-
- \sa mimeTypes(), dropMimeData()
-*/
-QMimeData *QAbstractItemModel::mimeData(const QModelIndexList &indexes) const
-{
- if (indexes.count() <= 0)
- return 0;
- QStringList types = mimeTypes();
- if (types.isEmpty())
- return 0;
- QMimeData *data = new QMimeData();
- QString format = types.at(0);
- QByteArray encoded;
- QDataStream stream(&encoded, QIODevice::WriteOnly);
- encodeData(indexes, stream);
- data->setData(format, encoded);
- return data;
-}
-
-/*!
- Handles the \a data supplied by a drag and drop operation that ended with
- the given \a action.
-
- Returns true if the data and action can be handled by the model; otherwise
- returns false.
-
- Although the specified \a row, \a column and \a parent indicate the
- location of an item in the model where the operation ended, it is the
- responsibility of the view to provide a suitable location for where the
- data should be inserted.
-
- For instance, a drop action on an item in a QTreeView can result in new
- items either being inserted as children of the item specified by \a row,
- \a column, and \a parent, or as siblings of the item.
-
- When row and column are -1 it means that it is up to the model to decide
- where to place the data. This can occur in a tree when data is dropped on
- a parent. Models will usually append the data to the parent in this case.
-
- \sa supportedDropActions(), {Using drag and drop with item views}
-*/
-bool QAbstractItemModel::dropMimeData(const QMimeData *data, Qt::DropAction action,
- int row, int column, const QModelIndex &parent)
-{
- // check if the action is supported
- if (!data || !(action == Qt::CopyAction || action == Qt::MoveAction))
- return false;
- // check if the format is supported
- QStringList types = mimeTypes();
- if (types.isEmpty())
- return false;
- QString format = types.at(0);
- if (!data->hasFormat(format))
- return false;
- if (row > rowCount(parent))
- row = rowCount(parent);
- if (row == -1)
- row = rowCount(parent);
- if (column == -1)
- column = 0;
- // decode and insert
- QByteArray encoded = data->data(format);
- QDataStream stream(&encoded, QIODevice::ReadOnly);
- return decodeData(row, column, parent, stream);
-}
-
-/*!
- \since 4.2
-
- Returns the drop actions supported by this model.
-
- The default implementation returns Qt::CopyAction. Reimplement this
- function if you wish to support additional actions. You must also
- reimplement the dropMimeData() function to handle the additional
- operations.
-
- \sa dropMimeData(), Qt::DropActions, {Using drag and drop with item
- views}
-*/
-Qt::DropActions QAbstractItemModel::supportedDropActions() const
-{
- return Qt::CopyAction;
-}
-
-/*!
- Returns the actions supported by the data in this model.
-
- The default implementation returns supportedDropActions() unless specific
- values have been set with setSupportedDragActions().
-
- supportedDragActions() is used by QAbstractItemView::startDrag() as the
- default values when a drag occurs.
-
- \sa Qt::DropActions, {Using drag and drop with item views}
-*/
-Qt::DropActions QAbstractItemModel::supportedDragActions() const
-{
- // ### Qt 5: make this virtual or these properties
- Q_D(const QAbstractItemModel);
- if (d->supportedDragActions != -1)
- return d->supportedDragActions;
- return supportedDropActions();
-}
-
-/*!
- \since 4.2
-
- Sets the supported drag \a actions for the items in the model.
-
- \sa supportedDragActions(), {Using drag and drop with item views}
-*/
-void QAbstractItemModel::setSupportedDragActions(Qt::DropActions actions)
-{
- Q_D(QAbstractItemModel);
- d->supportedDragActions = actions;
-}
-
-/*!
- \note The base class implementation of this function does nothing and
- returns false.
-
- On models that support this, inserts \a count rows into the model before
- the given \a row. Items in the new row will be children of the item
- represented by the \a parent model index.
-
- If \a row is 0, the rows are prepended to any existing rows in the parent.
-
- If \a row is rowCount(), the rows are appended to any existing rows in the
- parent.
-
- If \a parent has no children, a single column with \a count rows is
- inserted.
-
- Returns true if the rows were successfully inserted; otherwise returns
- false.
-
- If you implement your own model, you can reimplement this function if you
- want to support insertions. Alternatively, you can provide your own API for
- altering the data. In either case, you will need to call
- beginInsertRows() and endInsertRows() to notify other components that the
- model has changed.
-
- \sa insertColumns(), removeRows(), beginInsertRows(), endInsertRows()
-*/
-bool QAbstractItemModel::insertRows(int, int, const QModelIndex &)
-{
- return false;
-}
-
-/*!
- On models that support this, inserts \a count new columns into the model
- before the given \a column. The items in each new column will be children
- of the item represented by the \a parent model index.
-
- If \a column is 0, the columns are prepended to any existing columns.
-
- If \a column is columnCount(), the columns are appended to any existing
- columns.
-
- If \a parent has no children, a single row with \a count columns is
- inserted.
-
- Returns true if the columns were successfully inserted; otherwise returns
- false.
-
- The base class implementation does nothing and returns false.
-
- If you implement your own model, you can reimplement this function if you
- want to support insertions. Alternatively, you can provide your own API for
- altering the data.
-
- \sa insertRows(), removeColumns(), beginInsertColumns(), endInsertColumns()
-*/
-bool QAbstractItemModel::insertColumns(int, int, const QModelIndex &)
-{
- return false;
-}
-
-/*!
- On models that support this, removes \a count rows starting with the given
- \a row under parent \a parent from the model.
-
- Returns true if the rows were successfully removed; otherwise returns
- false.
-
- The base class implementation does nothing and returns false.
-
- If you implement your own model, you can reimplement this function if you
- want to support removing. Alternatively, you can provide your own API for
- altering the data.
-
- \sa removeRow(), removeColumns(), insertColumns(), beginRemoveRows(),
- endRemoveRows()
-*/
-bool QAbstractItemModel::removeRows(int, int, const QModelIndex &)
-{
- return false;
-}
-
-/*!
- On models that support this, removes \a count columns starting with the
- given \a column under parent \a parent from the model.
-
- Returns true if the columns were successfully removed; otherwise returns
- false.
-
- The base class implementation does nothing and returns false.
-
- If you implement your own model, you can reimplement this function if you
- want to support removing. Alternatively, you can provide your own API for
- altering the data.
-
- \sa removeColumn(), removeRows(), insertColumns(), beginRemoveColumns(),
- endRemoveColumns()
-*/
-bool QAbstractItemModel::removeColumns(int, int, const QModelIndex &)
-{
- return false;
-}
-
-/*!
- Fetches any available data for the items with the parent specified by the
- \a parent index.
-
- Reimplement this if you are populating your model incrementally.
-
- The default implementation does nothing.
-
- \sa canFetchMore()
-*/
-void QAbstractItemModel::fetchMore(const QModelIndex &)
-{
- // do nothing
-}
-
-/*!
- Returns true if there is more data available for \a parent; otherwise
- returns false.
-
- The default implementation always returns false.
-
- If canFetchMore() returns true, QAbstractItemView will call fetchMore().
- However, the fetchMore() function is only called when the model is being
- populated incrementally.
-
- \sa fetchMore()
-*/
-bool QAbstractItemModel::canFetchMore(const QModelIndex &) const
-{
- return false;
-}
-
-/*!
- Returns the item flags for the given \a index.
-
- The base class implementation returns a combination of flags that enables
- the item (\c ItemIsEnabled) and allows it to be selected
- (\c ItemIsSelectable).
-
- \sa Qt::ItemFlags
-*/
-Qt::ItemFlags QAbstractItemModel::flags(const QModelIndex &index) const
-{
- Q_D(const QAbstractItemModel);
- if (!d->indexValid(index))
- return 0;
-
- return Qt::ItemIsSelectable|Qt::ItemIsEnabled;
-}
-
-/*!
- Sorts the model by \a column in the given \a order.
-
- The base class implementation does nothing.
-*/
-void QAbstractItemModel::sort(int column, Qt::SortOrder order)
-{
- Q_UNUSED(column);
- Q_UNUSED(order);
- // do nothing
-}
-
-/*!
- Returns a model index for the buddy of the item represented by \a index.
- When the user wants to edit an item, the view will call this function to
- check whether another item in the model should be edited instead. Then, the
- view will construct a delegate using the model index returned by the buddy
- item.
-
- The default implementation of this function has each item as its own buddy.
-*/
-QModelIndex QAbstractItemModel::buddy(const QModelIndex &index) const
-{
- return index;
-}
-
-/*!
- Returns a list of indexes for the items in the column of the \a start index
- where data stored under the given \a role matches the specified \a value.
- The way the search is performed is defined by the \a flags given. The list
- that is returned may be empty.
-
- The search begins from the \a start index, and continues until the number
- of matching data items equals \a hits, the search reaches the last row, or
- the search reaches \a start again - depending on whether \c MatchWrap is
- specified in \a flags. If you want to search for all matching items, use
- \a hits = -1.
-
- By default, this function will perform a wrapping, string-based comparison
- on all items, searching for items that begin with the search term specified
- by \a value.
-
- \note The default implementation of this function only searches columns.
- Reimplement this function to include a different search behavior.
-*/
-QModelIndexList QAbstractItemModel::match(const QModelIndex &start, int role,
- const QVariant &value, int hits,
- Qt::MatchFlags flags) const
-{
- QModelIndexList result;
- uint matchType = flags & 0x0F;
- Qt::CaseSensitivity cs = flags & Qt::MatchCaseSensitive ? Qt::CaseSensitive : Qt::CaseInsensitive;
- bool recurse = flags & Qt::MatchRecursive;
- bool wrap = flags & Qt::MatchWrap;
- bool allHits = (hits == -1);
- QString text; // only convert to a string if it is needed
- QModelIndex p = parent(start);
- int from = start.row();
- int to = rowCount(p);
-
- // iterates twice if wrapping
- for (int i = 0; (wrap && i < 2) || (!wrap && i < 1); ++i) {
- for (int r = from; (r < to) && (allHits || result.count() < hits); ++r) {
- QModelIndex idx = index(r, start.column(), p);
- if (!idx.isValid())
- continue;
- QVariant v = data(idx, role);
- // QVariant based matching
- if (matchType == Qt::MatchExactly) {
- if (value == v)
- result.append(idx);
- } else { // QString based matching
- if (text.isEmpty()) // lazy conversion
- text = value.toString();
- QString t = v.toString();
- switch (matchType) {
- case Qt::MatchRegExp:
- if (QRegExp(text, cs).exactMatch(t))
- result.append(idx);
- break;
- case Qt::MatchWildcard:
- if (QRegExp(text, cs, QRegExp::Wildcard).exactMatch(t))
- result.append(idx);
- break;
- case Qt::MatchStartsWith:
- if (t.startsWith(text, cs))
- result.append(idx);
- break;
- case Qt::MatchEndsWith:
- if (t.endsWith(text, cs))
- result.append(idx);
- break;
- case Qt::MatchFixedString:
- if (t.compare(text, cs) == 0)
- result.append(idx);
- break;
- case Qt::MatchContains:
- default:
- if (t.contains(text, cs))
- result.append(idx);
- }
- }
- if (recurse && hasChildren(idx)) { // search the hierarchy
- result += match(index(0, idx.column(), idx), role,
- (text.isEmpty() ? value : text),
- (allHits ? -1 : hits - result.count()), flags);
- }
- }
- // prepare for the next iteration
- from = 0;
- to = start.row();
- }
- return result;
-}
-
-/*!
- Returns the row and column span of the item represented by \a index.
-
- \note Currently, span is not used.
-*/
-
-QSize QAbstractItemModel::span(const QModelIndex &) const
-{
- return QSize(1, 1);
-}
-
-/*!
- \since 4.6
-
- Sets the model's role names to \a roleNames.
-
- This function allows mapping of role identifiers to role property names in
- Declarative UI. This function must be called before the model is used.
- Modifying the role names after the model has been set may result in
- undefined behaviour.
-
- \sa roleNames()
-*/
-void QAbstractItemModel::setRoleNames(const QHash<int,QByteArray> &roleNames)
-{
- Q_D(QAbstractItemModel);
- d->roleNames = roleNames;
-}
-
-/*!
- \since 4.6
-
- Returns the model's role names.
-
- \sa setRoleNames()
-*/
-const QHash<int,QByteArray> &QAbstractItemModel::roleNames() const
-{
- Q_D(const QAbstractItemModel);
- return d->roleNames;
-}
-
-/*!
- Lets the model know that it should submit cached information to permanent
- storage. This function is typically used for row editing.
-
- Returns true if there is no error; otherwise returns false.
-
- \sa revert()
-*/
-
-bool QAbstractItemModel::submit()
-{
- return true;
-}
-
-/*!
- Lets the model know that it should discard cached information. This
- function is typically used for row editing.
-
- \sa submit()
-*/
-
-void QAbstractItemModel::revert()
-{
- // do nothing
-}
-
-/*!
- Returns the data for the given \a role and \a section in the header with
- the specified \a orientation.
-
- For horizontal headers, the section number corresponds to the column
- number. Similarly, for vertical headers, the section number corresponds to
- the row number.
-
- \sa Qt::ItemDataRole, setHeaderData(), QHeaderView
-*/
-
-QVariant QAbstractItemModel::headerData(int section, Qt::Orientation orientation, int role) const
-{
- Q_UNUSED(orientation);
- if (role == Qt::DisplayRole)
- return section + 1;
- return QVariant();
-}
-
-/*!
- Sets the data for the given \a role and \a section in the header with the
- specified \a orientation to the \a value supplied.
-
- Returns true if the header's data was updated; otherwise returns false.
-
- When reimplementing this function, the headerDataChanged() signal must be
- emitted explicitly.
-
- \sa Qt::ItemDataRole, headerData()
-*/
-
-bool QAbstractItemModel::setHeaderData(int section, Qt::Orientation orientation,
- const QVariant &value, int role)
-{
- Q_UNUSED(section);
- Q_UNUSED(orientation);
- Q_UNUSED(value);
- Q_UNUSED(role);
- return false;
-}
-
-/*!
- \fn QModelIndex QAbstractItemModel::createIndex(int row, int column, void *ptr) const
-
- Creates a model index for the given \a row and \a column with the internal
- pointer \a ptr.
-
- When using a QSortFilterProxyModel, its indexes have their own internal
- pointer. It is not advisable to access this internal pointer outside of the
- model. Use the data() function instead.
-
- This function provides a consistent interface that model subclasses must
- use to create model indexes.
-*/
-
-/*!
- \fn QModelIndex QAbstractItemModel::createIndex(int row, int column, int id) const
- \obsolete
-
- Use QModelIndex
- QAbstractItemModel::createIndex(int row, int column, quint32 id) instead.
-*/
-
-/*!
- \fn QModelIndex QAbstractItemModel::createIndex(int row, int column, quint32 id) const
-
- Creates a model index for the given \a row and \a column with the internal
- identifier, \a id.
-
- This function provides a consistent interface that model subclasses must
- use to create model indexes.
-
- \sa QModelIndex::internalId()
-*/
-
-/*!
- \internal
-*/
-void QAbstractItemModel::encodeData(const QModelIndexList &indexes, QDataStream &stream) const
-{
- QModelIndexList::ConstIterator it = indexes.begin();
- for (; it != indexes.end(); ++it)
- stream << (*it).row() << (*it).column() << itemData(*it);
-}
-
-/*!
- \internal
- */
-bool QAbstractItemModel::decodeData(int row, int column, const QModelIndex &parent,
- QDataStream &stream)
-{
- int top = INT_MAX;
- int left = INT_MAX;
- int bottom = 0;
- int right = 0;
- QVector<int> rows, columns;
- QVector<QMap<int, QVariant> > data;
-
- while (!stream.atEnd()) {
- int r, c;
- QMap<int, QVariant> v;
- stream >> r >> c >> v;
- rows.append(r);
- columns.append(c);
- data.append(v);
- top = qMin(r, top);
- left = qMin(c, left);
- bottom = qMax(r, bottom);
- right = qMax(c, right);
- }
-
- // insert the dragged items into the table, use a bit array to avoid overwriting items,
- // since items from different tables can have the same row and column
- int dragRowCount = 0;
- int dragColumnCount = right - left + 1;
-
- // Compute the number of continuous rows upon insertion and modify the rows to match
- QVector<int> rowsToInsert(bottom + 1);
- for (int i = 0; i < rows.count(); ++i)
- rowsToInsert[rows.at(i)] = 1;
- for (int i = 0; i < rowsToInsert.count(); ++i) {
- if (rowsToInsert[i] == 1){
- rowsToInsert[i] = dragRowCount;
- ++dragRowCount;
- }
- }
- for (int i = 0; i < rows.count(); ++i)
- rows[i] = top + rowsToInsert[rows[i]];
-
- QBitArray isWrittenTo(dragRowCount * dragColumnCount);
-
- // make space in the table for the dropped data
- int colCount = columnCount(parent);
- if (colCount == 0) {
- insertColumns(colCount, dragColumnCount - colCount, parent);
- colCount = columnCount(parent);
- }
- insertRows(row, dragRowCount, parent);
-
- row = qMax(0, row);
- column = qMax(0, column);
-
- QVector<QPersistentModelIndex> newIndexes(data.size());
- // set the data in the table
- for (int j = 0; j < data.size(); ++j) {
- int relativeRow = rows.at(j) - top;
- int relativeColumn = columns.at(j) - left;
- int destinationRow = relativeRow + row;
- int destinationColumn = relativeColumn + column;
- int flat = (relativeRow * dragColumnCount) + relativeColumn;
- // if the item was already written to, or we just can't fit it in the table, create a new row
- if (destinationColumn >= colCount || isWrittenTo.testBit(flat)) {
- destinationColumn = qBound(column, destinationColumn, colCount - 1);
- destinationRow = row + dragRowCount;
- insertRows(row + dragRowCount, 1, parent);
- flat = (dragRowCount * dragColumnCount) + relativeColumn;
- isWrittenTo.resize(++dragRowCount * dragColumnCount);
- }
- if (!isWrittenTo.testBit(flat)) {
- newIndexes[j] = index(destinationRow, destinationColumn, parent);
- isWrittenTo.setBit(flat);
- }
- }
-
- for(int k = 0; k < newIndexes.size(); k++) {
- if (newIndexes.at(k).isValid())
- setItemData(newIndexes.at(k), data.at(k));
- }
-
- return true;
-}
-
-/*!
- Begins a row insertion operation.
-
- When reimplementing insertRows() in a subclass, you must call this function
- \e before inserting data into the model's underlying data store.
-
- The \a parent index corresponds to the parent into which the new rows are
- inserted; \a first and \a last are the row numbers that the new rows will
- have after they have been inserted.
-
- \table 80%
- \row
- \o \inlineimage modelview-begin-insert-rows.png Inserting rows
- \o Specify the first and last row numbers for the span of rows you
- want to insert into an item in a model.
-
- For example, as shown in the diagram, we insert three rows before
- row 2, so \a first is 2 and \a last is 4:
-
- \snippet doc/src/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp 0
-
- This inserts the three new rows as rows 2, 3, and 4.
- \row
- \o \inlineimage modelview-begin-append-rows.png Appending rows
- \o To append rows, insert them after the last row.
-
- For example, as shown in the diagram, we append two rows to a
- collection of 4 existing rows (ending in row 3), so \a first is 4
- and \a last is 5:
-
- \snippet doc/src/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp 1
-
- This appends the two new rows as rows 4 and 5.
- \endtable
-
- \note This function emits the rowsAboutToBeInserted() signal which
- connected views (or proxies) must handle before the data is inserted.
- Otherwise, the views may end up in an invalid state.
- \sa endInsertRows()
-*/
-void QAbstractItemModel::beginInsertRows(const QModelIndex &parent, int first, int last)
-{
- Q_ASSERT(first >= 0);
- Q_ASSERT(last >= first);
- Q_D(QAbstractItemModel);
- d->changes.push(QAbstractItemModelPrivate::Change(parent, first, last));
- emit rowsAboutToBeInserted(parent, first, last);
- d->rowsAboutToBeInserted(parent, first, last);
-}
-
-/*!
- Ends a row insertion operation.
-
- When reimplementing insertRows() in a subclass, you must call this function
- \e after inserting data into the model's underlying data store.
-
- \sa beginInsertRows()
-*/
-void QAbstractItemModel::endInsertRows()
-{
- Q_D(QAbstractItemModel);
- QAbstractItemModelPrivate::Change change = d->changes.pop();
- d->rowsInserted(change.parent, change.first, change.last);
- emit rowsInserted(change.parent, change.first, change.last);
-}
-
-/*!
- Begins a row removal operation.
-
- When reimplementing removeRows() in a subclass, you must call this
- function \e before removing data from the model's underlying data store.
-
- The \a parent index corresponds to the parent from which the new rows are
- removed; \a first and \a last are the row numbers of the rows to be
- removed.
-
- \table 80%
- \row
- \o \inlineimage modelview-begin-remove-rows.png Removing rows
- \o Specify the first and last row numbers for the span of rows you
- want to remove from an item in a model.
-
- For example, as shown in the diagram, we remove the two rows from
- row 2 to row 3, so \a first is 2 and \a last is 3:
-
- \snippet doc/src/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp 2
- \endtable
-
- \note This function emits the rowsAboutToBeRemoved() signal which connected
- views (or proxies) must handle before the data is removed. Otherwise, the
- views may end up in an invalid state.
-
- \sa endRemoveRows()
-*/
-void QAbstractItemModel::beginRemoveRows(const QModelIndex &parent, int first, int last)
-{
- Q_ASSERT(first >= 0);
- Q_ASSERT(last >= first);
- Q_D(QAbstractItemModel);
- d->changes.push(QAbstractItemModelPrivate::Change(parent, first, last));
- emit rowsAboutToBeRemoved(parent, first, last);
- d->rowsAboutToBeRemoved(parent, first, last);
-}
-
-/*!
- Ends a row removal operation.
-
- When reimplementing removeRows() in a subclass, you must call this function
- \e after removing data from the model's underlying data store.
-
- \sa beginRemoveRows()
-*/
-void QAbstractItemModel::endRemoveRows()
-{
- Q_D(QAbstractItemModel);
- QAbstractItemModelPrivate::Change change = d->changes.pop();
- d->rowsRemoved(change.parent, change.first, change.last);
- emit rowsRemoved(change.parent, change.first, change.last);
-}
-
-/*!
- Returns whether a move operation is valid.
-
- A move operation is not allowed if it moves a continuous range of rows to a destination within
- itself, or if it attempts to move a row to one of its own descendants.
-
- \internal
-*/
-bool QAbstractItemModelPrivate::allowMove(const QModelIndex &srcParent, int start, int end, const QModelIndex &destinationParent, int destinationStart, Qt::Orientation orientation)
-{
- // Don't move the range within itself.
- if (destinationParent == srcParent)
- return !(destinationStart >= start && destinationStart <= end + 1);
-
- QModelIndex destinationAncestor = destinationParent;
- int pos = (Qt::Vertical == orientation) ? destinationAncestor.row() : destinationAncestor.column();
- forever {
- if (destinationAncestor == srcParent) {
- if (pos >= start && pos <= end)
- return false;
- break;
- }
-
- if (!destinationAncestor.isValid())
- break;
-
- pos = (Qt::Vertical == orientation) ? destinationAncestor.row() : destinationAncestor.column();
- destinationAncestor = destinationAncestor.parent();
- }
-
- return true;
-}
-
-/*!
- \since 4.6
-
- Begins a row move operation.
-
- When reimplementing a subclass, this method simplifies moving
- entities in your model. This method is responsible for moving
- persistent indexes in the model, which you would otherwise be
- required to do yourself. Using beginMoveRows and endMoveRows
- is an alternative to emitting layoutAboutToBeChanged and
- layoutChanged directly along with changePersistentIndexes.
-
- The \a sourceParent index corresponds to the parent from which the
- rows are moved; \a sourceFirst and \a sourceLast are the first and last
- row numbers of the rows to be moved. The \a destinationParent index
- corresponds to the parent into which those rows are moved. The \a
- destinationChild is the row to which the rows will be moved. That
- is, the index at row \a sourceFirst in \a sourceParent will become
- row \a destinationChild in \a destinationParent, followed by all other
- rows up to \a sourceLast.
-
- However, when moving rows down in the same parent (\a sourceParent
- and \a destinationParent are equal), the rows will be placed before the
- \a destinationChild index. That is, if you wish to move rows 0 and 1 so
- they will become rows 1 and 2, \a destinationChild should be 3. In this
- case, the new index for the source row \c i (which is between
- \a sourceFirst and \a sourceLast) is equal to
- \c {(destinationChild-sourceLast-1+i)}.
-
- Note that if \a sourceParent and \a destinationParent are the same,
- you must ensure that the \a destinationChild is not within the range
- of \a sourceFirst and \a sourceLast + 1. You must also ensure that you
- do not attempt to move a row to one of its own children or ancestors.
- This method returns false if either condition is true, in which case you
- should abort your move operation.
-
- \table 80%
- \row
- \o \inlineimage modelview-move-rows-1.png Moving rows to another parent
- \o Specify the first and last row numbers for the span of rows in
- the source parent you want to move in the model. Also specify
- the row in the destination parent to move the span to.
-
- For example, as shown in the diagram, we move three rows from
- row 2 to 4 in the source, so \a sourceFirst is 2 and \a sourceLast is 4.
- We move those items to above row 2 in the destination, so \a destinationChild is 2.
-
- \snippet doc/src/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp 6
-
- This moves the three rows rows 2, 3, and 4 in the source to become 2, 3 and 4 in
- the destination. Other affected siblings are displaced accordingly.
- \row
- \o \inlineimage modelview-move-rows-2.png Moving rows to append to another parent
- \o To append rows to another parent, move them to after the last row.
-
- For example, as shown in the diagram, we move three rows to a
- collection of 6 existing rows (ending in row 5), so \a destinationChild is 6:
-
- \snippet doc/src/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp 7
-
- This moves the target rows to the end of the target parent as 6, 7 and 8.
- \row
- \o \inlineimage modelview-move-rows-3.png Moving rows in the same parent up
- \o To move rows within the same parent, specify the row to move them to.
-
- For example, as shown in the diagram, we move one item from row 2 to row 0,
- so \a sourceFirst and \a sourceLast are 2 and \a destinationChild is 0.
-
- \snippet doc/src/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp 8
-
- Note that other rows may be displaced accordingly. Note also that when moving
- items within the same parent you should not attempt invalid or no-op moves. In
- the above example, item 2 is at row 2 before the move, so it can not be moved
- to row 2 (where it is already) or row 3 (no-op as row 3 means above row 3, where
- it is already)
-
- \row
- \o \inlineimage modelview-move-rows-4.png Moving rows in the same parent down
- \o To move rows within the same parent, specify the row to move them to.
-
- For example, as shown in the diagram, we move one item from row 2 to row 4,
- so \a sourceFirst and \a sourceLast are 2 and \a destinationChild is 4.
-
- \snippet doc/src/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp 9
-
- Note that other rows may be displaced accordingly.
- \endtable
-
- \sa endMoveRows()
-*/
-bool QAbstractItemModel::beginMoveRows(const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationChild)
-{
- Q_ASSERT(sourceFirst >= 0);
- Q_ASSERT(sourceLast >= sourceFirst);
- Q_ASSERT(destinationChild >= 0);
- Q_D(QAbstractItemModel);
-
- if (!d->allowMove(sourceParent, sourceFirst, sourceLast, destinationParent, destinationChild, Qt::Vertical)) {
- return false;
- }
-
- QAbstractItemModelPrivate::Change sourceChange(sourceParent, sourceFirst, sourceLast);
- sourceChange.needsAdjust = sourceParent.isValid() && sourceParent.row() >= destinationChild && sourceParent.parent() == destinationParent;
- d->changes.push(sourceChange);
- int destinationLast = destinationChild + (sourceLast - sourceFirst);
- QAbstractItemModelPrivate::Change destinationChange(destinationParent, destinationChild, destinationLast);
- destinationChange.needsAdjust = destinationParent.isValid() && destinationParent.row() >= sourceLast && destinationParent.parent() == sourceParent;
- d->changes.push(destinationChange);
-
- emit rowsAboutToBeMoved(sourceParent, sourceFirst, sourceLast, destinationParent, destinationChild);
- d->itemsAboutToBeMoved(sourceParent, sourceFirst, sourceLast, destinationParent, destinationChild, Qt::Vertical);
- return true;
-}
-
-/*!
- Ends a row move operation.
-
- When implementing a subclass, you must call this
- function \e after moving data within the model's underlying data
- store.
-
- \sa beginMoveRows()
-
- \since 4.6
-*/
-void QAbstractItemModel::endMoveRows()
-{
- Q_D(QAbstractItemModel);
-
- QAbstractItemModelPrivate::Change insertChange = d->changes.pop();
- QAbstractItemModelPrivate::Change removeChange = d->changes.pop();
-
- QModelIndex adjustedSource = removeChange.parent;
- QModelIndex adjustedDestination = insertChange.parent;
-
- const int numMoved = removeChange.last - removeChange.first + 1;
- if (insertChange.needsAdjust)
- adjustedDestination = createIndex(adjustedDestination.row() - numMoved, adjustedDestination.column(), adjustedDestination.internalPointer());
-
- if (removeChange.needsAdjust)
- adjustedSource = createIndex(adjustedSource.row() + numMoved, adjustedSource.column(), adjustedSource.internalPointer());
-
- d->itemsMoved(adjustedSource, removeChange.first, removeChange.last, adjustedDestination, insertChange.first, Qt::Vertical);
-
- emit rowsMoved(adjustedSource, removeChange.first, removeChange.last, adjustedDestination, insertChange.first);
-}
-
-/*!
- Begins a column insertion operation.
-
- When reimplementing insertColumns() in a subclass, you must call this
- function \e before inserting data into the model's underlying data store.
-
- The \a parent index corresponds to the parent into which the new columns
- are inserted; \a first and \a last are the column numbers of the new
- columns will have after they have been inserted.
-
- \table 80%
- \row
- \o \inlineimage modelview-begin-insert-columns.png Inserting columns
- \o Specify the first and last column numbers for the span of columns
- you want to insert into an item in a model.
-
- For example, as shown in the diagram, we insert three columns
- before column 4, so \a first is 4 and \a last is 6:
-
- \snippet doc/src/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp 3
-
- This inserts the three new columns as columns 4, 5, and 6.
- \row
- \o \inlineimage modelview-begin-append-columns.png Appending columns
- \o To append columns, insert them after the last column.
-
- For example, as shown in the diagram, we append three columns to a
- collection of six existing columns (ending in column 5), so
- \a first is 6 and \a last is 8:
-
- \snippet doc/src/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp 4
-
- This appends the two new columns as columns 6, 7, and 8.
- \endtable
-
- \note This function emits the columnsAboutToBeInserted() signal which
- connected views (or proxies) must handle before the data is inserted.
- Otherwise, the views may end up in an invalid state.
-
- \sa endInsertColumns()
-*/
-void QAbstractItemModel::beginInsertColumns(const QModelIndex &parent, int first, int last)
-{
- Q_ASSERT(first >= 0);
- Q_ASSERT(last >= first);
- Q_D(QAbstractItemModel);
- d->changes.push(QAbstractItemModelPrivate::Change(parent, first, last));
- emit columnsAboutToBeInserted(parent, first, last);
- d->columnsAboutToBeInserted(parent, first, last);
-}
-
-/*!
- Ends a column insertion operation.
-
- When reimplementing insertColumns() in a subclass, you must call this
- function \e after inserting data into the model's underlying data
- store.
-
- \sa beginInsertColumns()
-*/
-void QAbstractItemModel::endInsertColumns()
-{
- Q_D(QAbstractItemModel);
- QAbstractItemModelPrivate::Change change = d->changes.pop();
- d->columnsInserted(change.parent, change.first, change.last);
- emit columnsInserted(change.parent, change.first, change.last);
-}
-
-/*!
- Begins a column removal operation.
-
- When reimplementing removeColumns() in a subclass, you must call this
- function \e before removing data from the model's underlying data store.
-
- The \a parent index corresponds to the parent from which the new columns
- are removed; \a first and \a last are the column numbers of the first and
- last columns to be removed.
-
- \table 80%
- \row
- \o \inlineimage modelview-begin-remove-columns.png Removing columns
- \o Specify the first and last column numbers for the span of columns
- you want to remove from an item in a model.
-
- For example, as shown in the diagram, we remove the three columns
- from column 4 to column 6, so \a first is 4 and \a last is 6:
-
- \snippet doc/src/snippets/code/src_corelib_kernel_qabstractitemmodel.cpp 5
- \endtable
-
- \note This function emits the columnsAboutToBeRemoved() signal which
- connected views (or proxies) must handle before the data is removed.
- Otherwise, the views may end up in an invalid state.
-
- \sa endRemoveColumns()
-*/
-void QAbstractItemModel::beginRemoveColumns(const QModelIndex &parent, int first, int last)
-{
- Q_ASSERT(first >= 0);
- Q_ASSERT(last >= first);
- Q_D(QAbstractItemModel);
- d->changes.push(QAbstractItemModelPrivate::Change(parent, first, last));
- emit columnsAboutToBeRemoved(parent, first, last);
- d->columnsAboutToBeRemoved(parent, first, last);
-}
-
-/*!
- Ends a column removal operation.
-
- When reimplementing removeColumns() in a subclass, you must call this
- function \e after removing data from the model's underlying data store.
-
- \sa beginRemoveColumns()
-*/
-void QAbstractItemModel::endRemoveColumns()
-{
- Q_D(QAbstractItemModel);
- QAbstractItemModelPrivate::Change change = d->changes.pop();
- d->columnsRemoved(change.parent, change.first, change.last);
- emit columnsRemoved(change.parent, change.first, change.last);
-}
-
-/*!
- Begins a column move operation.
-
- When reimplementing a subclass, this method simplifies moving
- entities in your model. This method is responsible for moving
- persistent indexes in the model, which you would otherwise be
- required to do yourself. Using beginMoveRows and endMoveRows
- is an alternative to emitting layoutAboutToBeChanged and
- layoutChanged directly along with changePersistentIndexes.
-
- The \a sourceParent index corresponds to the parent from which the
- columns are moved; \a sourceFirst and \a sourceLast are the first and last
- column numbers of the columns to be moved. The \a destinationParent index
- corresponds to the parent into which those columns are moved. The \a
- destinationChild is the column to which the columns will be moved. That
- is, the index at column \a sourceFirst in \a sourceParent will become
- column \a destinationChild in \a destinationParent, followed by all other
- columns up to \a sourceLast.
-
- However, when moving columns down in the same parent (\a sourceParent
- and \a destinationParent are equal), the columnss will be placed before the
- \a destinationChild index. That is, if you wish to move columns 0 and 1 so
- they will become columns 1 and 2, \a destinationChild should be 3. In this
- case, the new index for the source column \c i (which is between
- \a sourceFirst and \a sourceLast) is equal to
- \c {(destinationChild-sourceLast-1+i)}.
-
- Note that if \a sourceParent and \a destinationParent are the same,
- you must ensure that the \a destinationChild is not within the range
- of \a sourceFirst and \a sourceLast + 1. You must also ensure that you
- do not attempt to move a column to one of its own children or ancestors.
- This method returns false if either condition is true, in which case you
- should abort your move operation.
-
- \sa endMoveColumns()
-
- \since 4.6
-*/
-bool QAbstractItemModel::beginMoveColumns(const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationChild)
-{
- Q_ASSERT(sourceFirst >= 0);
- Q_ASSERT(sourceLast >= sourceFirst);
- Q_ASSERT(destinationChild >= 0);
- Q_D(QAbstractItemModel);
-
- if (!d->allowMove(sourceParent, sourceFirst, sourceLast, destinationParent, destinationChild, Qt::Horizontal)) {
- return false;
- }
-
- QAbstractItemModelPrivate::Change sourceChange(sourceParent, sourceFirst, sourceLast);
- sourceChange.needsAdjust = sourceParent.isValid() && sourceParent.row() >= destinationChild && sourceParent.parent() == destinationParent;
- d->changes.push(sourceChange);
- int destinationLast = destinationChild + (sourceLast - sourceFirst);
- QAbstractItemModelPrivate::Change destinationChange(destinationParent, destinationChild, destinationLast);
- destinationChange.needsAdjust = destinationParent.isValid() && destinationParent.row() >= sourceLast && destinationParent.parent() == sourceParent;
- d->changes.push(destinationChange);
-
- d->itemsAboutToBeMoved(sourceParent, sourceFirst, sourceLast, destinationParent, destinationChild, Qt::Horizontal);
-
- emit columnsAboutToBeMoved(sourceParent, sourceFirst, sourceLast, destinationParent, destinationChild);
- return true;
-}
-
-/*!
- Ends a column move operation.
-
- When implementing a subclass, you must call this
- function \e after moving data within the model's underlying data
- store.
-
- \sa beginMoveColumns()
-
- \since 4.6
-*/
-void QAbstractItemModel::endMoveColumns()
-{
- Q_D(QAbstractItemModel);
-
- QAbstractItemModelPrivate::Change insertChange = d->changes.pop();
- QAbstractItemModelPrivate::Change removeChange = d->changes.pop();
-
- QModelIndex adjustedSource = removeChange.parent;
- QModelIndex adjustedDestination = insertChange.parent;
-
- const int numMoved = removeChange.last - removeChange.first + 1;
- if (insertChange.needsAdjust)
- adjustedDestination = createIndex(adjustedDestination.row(), adjustedDestination.column() - numMoved, adjustedDestination.internalPointer());
-
- if (removeChange.needsAdjust)
- adjustedSource = createIndex(adjustedSource.row(), adjustedSource.column() + numMoved, adjustedSource.internalPointer());
-
- d->itemsMoved(adjustedSource, removeChange.first, removeChange.last, adjustedDestination, insertChange.first, Qt::Horizontal);
-
- emit columnsMoved(adjustedSource, removeChange.first, removeChange.last, adjustedDestination, insertChange.first);
-}
-
-/*!
- Resets the model to its original state in any attached views.
-
- \note Use beginResetModel() and endResetModel() instead whenever possible.
- Use this method only if there is no way to call beginResetModel() before invalidating the model.
- Otherwise it could lead to unexpected behaviour, especially when used with proxy models.
-*/
-void QAbstractItemModel::reset()
-{
- Q_D(QAbstractItemModel);
- emit modelAboutToBeReset();
- d->invalidatePersistentIndexes();
- emit modelReset();
-}
-
-/*!
- Begins a model reset operation.
-
- A reset operation resets the model to its current state in any attached views.
-
- \note Any views attached to this model will be reset as well.
-
- When a model is reset it means that any previous data reported from the
- model is now invalid and has to be queried for again. This also means that
- the current item and any selected items will become invalid.
-
- When a model radically changes its data it can sometimes be easier to just
- call this function rather than emit dataChanged() to inform other
- components when the underlying data source, or its structure, has changed.
-
- You must call this function before resetting any internal data structures in your model
- or proxy model.
-
- \sa modelAboutToBeReset(), modelReset(), endResetModel()
- \since 4.6
-*/
-void QAbstractItemModel::beginResetModel()
-{
- emit modelAboutToBeReset();
-}
-
-/*!
- Completes a model reset operation.
-
- You must call this function after resetting any internal data structure in your model
- or proxy model.
-
- \sa beginResetModel()
- \since 4.6
-*/
-void QAbstractItemModel::endResetModel()
-{
- Q_D(QAbstractItemModel);
- d->invalidatePersistentIndexes();
- emit modelReset();
-}
-
-/*!
- Changes the QPersistentModelIndex that is equal to the given \a from model
- index to the given \a to model index.
-
- If no persistent model index equal to the given \a from model index was
- found, nothing is changed.
-
- \sa persistentIndexList(), changePersistentIndexList()
-*/
-void QAbstractItemModel::changePersistentIndex(const QModelIndex &from, const QModelIndex &to)
-{
- Q_D(QAbstractItemModel);
- if (d->persistent.indexes.isEmpty())
- return;
- // find the data and reinsert it sorted
- const QHash<QModelIndex, QPersistentModelIndexData *>::iterator it = d->persistent.indexes.find(from);
- if (it != d->persistent.indexes.end()) {
- QPersistentModelIndexData *data = *it;
- d->persistent.indexes.erase(it);
- data->index = to;
- if (to.isValid())
- d->persistent.insertMultiAtEnd(to, data);
- else
- data->model = 0;
- }
-}
-
-/*!
- \since 4.1
-
- Changes the QPersistentModelIndexes that is equal to the indexes in the
- given \a from model index list to the given \a to model index list.
-
- If no persistent model indexes equal to the indexes in the given \a from
- model index list was found, nothing is changed.
-
- \sa persistentIndexList(), changePersistentIndex()
-*/
-void QAbstractItemModel::changePersistentIndexList(const QModelIndexList &from,
- const QModelIndexList &to)
-{
- Q_D(QAbstractItemModel);
- if (d->persistent.indexes.isEmpty())
- return;
- QVector<QPersistentModelIndexData *> toBeReinserted;
- toBeReinserted.reserve(to.count());
- for (int i = 0; i < from.count(); ++i) {
- if (from.at(i) == to.at(i))
- continue;
- const QHash<QModelIndex, QPersistentModelIndexData *>::iterator it = d->persistent.indexes.find(from.at(i));
- if (it != d->persistent.indexes.end()) {
- QPersistentModelIndexData *data = *it;
- d->persistent.indexes.erase(it);
- data->index = to.at(i);
- if (data->index.isValid())
- toBeReinserted << data;
- else
- data->model = 0;
- }
- }
-
- for (QVector<QPersistentModelIndexData *>::const_iterator it = toBeReinserted.constBegin();
- it != toBeReinserted.constEnd() ; ++it) {
- QPersistentModelIndexData *data = *it;
- d->persistent.insertMultiAtEnd(data->index, data);
- }
-}
-
-/*!
- \since 4.2
-
- Returns the list of indexes stored as persistent indexes in the model.
-*/
-QModelIndexList QAbstractItemModel::persistentIndexList() const
-{
- Q_D(const QAbstractItemModel);
- QModelIndexList result;
- for (QHash<QModelIndex, QPersistentModelIndexData *>::const_iterator it = d->persistent.indexes.constBegin();
- it != d->persistent.indexes.constEnd(); ++it) {
- QPersistentModelIndexData *data = *it;
- result.append(data->index);
- }
- return result;
-}
-
-
-/*!
- \class QAbstractTableModel
- \brief The QAbstractTableModel class provides an abstract model that can be
- subclassed to create table models.
-
- \ingroup model-view
-
- QAbstractTableModel provides a standard interface for models that represent
- their data as a two-dimensional array of items. It is not used directly,
- but must be subclassed.
-
- Since the model provides a more specialized interface than
- QAbstractItemModel, it is not suitable for use with tree views, although it
- can be used to provide data to a QListView. If you need to represent a
- simple list of items, and only need a model to contain a single column of
- data, subclassing the QAbstractListModel may be more appropriate.
-
- The rowCount() and columnCount() functions return the dimensions of the
- table. To retrieve a model index corresponding to an item in the model, use
- index() and provide only the row and column numbers.
-
- \section1 Subclassing
-
- When subclassing QAbstractTableModel, you must implement rowCount(),
- columnCount(), and data(). Default implementations of the index() and
- parent() functions are provided by QAbstractTableModel.
- Well behaved models will also implement headerData().
-
- Editable models need to implement setData(), and implement flags() to
- return a value containing
- \l{Qt::ItemFlags}{Qt::ItemIsEditable}.
-
- Models that provide interfaces to resizable data structures can
- provide implementations of insertRows(), removeRows(), insertColumns(),
- and removeColumns(). When implementing these functions, it is
- important to call the appropriate functions so that all connected views
- are aware of any changes:
-
- \list
- \o An insertRows() implementation must call beginInsertRows()
- \e before inserting new rows into the data structure, and it must
- call endInsertRows() \e{immediately afterwards}.
- \o An insertColumns() implementation must call beginInsertColumns()
- \e before inserting new columns into the data structure, and it must
- call endInsertColumns() \e{immediately afterwards}.
- \o A removeRows() implementation must call beginRemoveRows()
- \e before the rows are removed from the data structure, and it must
- call endRemoveRows() \e{immediately afterwards}.
- \o A removeColumns() implementation must call beginRemoveColumns()
- \e before the columns are removed from the data structure, and it must
- call endRemoveColumns() \e{immediately afterwards}.
- \endlist
-
- \note Some general guidelines for subclassing models are available in the
- \l{Model Subclassing Reference}.
-
- \note
-
- \sa {Model Classes}, QAbstractItemModel, QAbstractListModel,
- {Pixelator Example}
-*/
-
-/*!
- Constructs an abstract table model for the given \a parent.
-*/
-
-QAbstractTableModel::QAbstractTableModel(QObject *parent)
- : QAbstractItemModel(parent)
-{
-
-}
-
-/*!
- \internal
-
- Constructs an abstract table model with \a dd and the given \a parent.
-*/
-
-QAbstractTableModel::QAbstractTableModel(QAbstractItemModelPrivate &dd, QObject *parent)
- : QAbstractItemModel(dd, parent)
-{
-
-}
-
-/*!
- Destroys the abstract table model.
-*/
-
-QAbstractTableModel::~QAbstractTableModel()
-{
-
-}
-
-/*!
- \fn QModelIndex QAbstractTableModel::index(int row, int column, const QModelIndex &parent = QModelIndex()) const
-
- Returns the index of the data in \a row and \a column with \a parent.
-
- \sa parent()
-*/
-
-QModelIndex QAbstractTableModel::index(int row, int column, const QModelIndex &parent) const
-{
- return hasIndex(row, column, parent) ? createIndex(row, column, 0) : QModelIndex();
-}
-
-/*!
- \fn QModelIndex QAbstractTableModel::parent(const QModelIndex &index) const
-
- Returns the parent of the model item with the given \a index.
-
- \sa index() hasChildren()
-*/
-
-QModelIndex QAbstractTableModel::parent(const QModelIndex &) const
-{
- return QModelIndex();
-}
-
-bool QAbstractTableModel::hasChildren(const QModelIndex &parent) const
-{
- if (parent.model() == this || !parent.isValid())
- return rowCount(parent) > 0 && columnCount(parent) > 0;
- return false;
-}
-
-/*!
- \class QAbstractListModel
- \brief The QAbstractListModel class provides an abstract model that can be
- subclassed to create one-dimensional list models.
-
- \ingroup model-view
-
- QAbstractListModel provides a standard interface for models that represent
- their data as a simple non-hierarchical sequence of items. It is not used
- directly, but must be subclassed.
-
- Since the model provides a more specialized interface than
- QAbstractItemModel, it is not suitable for use with tree views; you will
- need to subclass QAbstractItemModel if you want to provide a model for
- that purpose. If you need to use a number of list models to manage data,
- it may be more appropriate to subclass QAbstractTableModel class instead.
-
- Simple models can be created by subclassing this class and implementing
- the minimum number of required functions. For example, we could implement
- a simple read-only QStringList-based model that provides a list of strings
- to a QListView widget. In such a case, we only need to implement the
- rowCount() function to return the number of items in the list, and the
- data() function to retrieve items from the list.
-
- Since the model represents a one-dimensional structure, the rowCount()
- function returns the total number of items in the model. The columnCount()
- function is implemented for interoperability with all kinds of views, but
- by default informs views that the model contains only one column.
-
- \section1 Subclassing
-
- When subclassing QAbstractListModel, you must provide implementations
- of the rowCount() and data() functions. Well behaved models also provide
- a headerData() implementation.
-
- For editable list models, you must also provide an implementation of
- setData(), implement the flags() function so that it returns a value
- containing \l{Qt::ItemFlags}{Qt::ItemIsEditable}.
-
- Note that QAbstractListModel provides a default implementation of
- columnCount() that informs views that there is only a single column
- of items in this model.
-
- Models that provide interfaces to resizable list-like data structures
- can provide implementations of insertRows() and removeRows(). When
- implementing these functions, it is important to call the appropriate
- functions so that all connected views are aware of any changes:
-
- \list
- \o An insertRows() implementation must call beginInsertRows()
- \e before inserting new rows into the data structure, and it must
- call endInsertRows() \e{immediately afterwards}.
- \o A removeRows() implementation must call beginRemoveRows()
- \e before the rows are removed from the data structure, and it must
- call endRemoveRows() \e{immediately afterwards}.
- \endlist
-
- \note Some general guidelines for subclassing models are available in the
- \l{Model Subclassing Reference}.
-
- \sa {Model Classes}, {Model Subclassing Reference}, QAbstractItemView,
- QAbstractTableModel, {Item Views Puzzle Example}
-*/
-
-/*!
- Constructs an abstract list model with the given \a parent.
-*/
-
-QAbstractListModel::QAbstractListModel(QObject *parent)
- : QAbstractItemModel(parent)
-{
-
-}
-
-/*!
- \internal
-
- Constructs an abstract list model with \a dd and the given \a parent.
-*/
-
-QAbstractListModel::QAbstractListModel(QAbstractItemModelPrivate &dd, QObject *parent)
- : QAbstractItemModel(dd, parent)
-{
-
-}
-
-/*!
- Destroys the abstract list model.
-*/
-
-QAbstractListModel::~QAbstractListModel()
-{
-
-}
-
-/*!
- \fn QModelIndex QAbstractListModel::index(int row, int column, const QModelIndex &parent = QModelIndex()) const
-
- Returns the index of the data in \a row and \a column with \a parent.
-
- \sa parent()
-*/
-
-QModelIndex QAbstractListModel::index(int row, int column, const QModelIndex &parent) const
-{
- return hasIndex(row, column, parent) ? createIndex(row, column, 0) : QModelIndex();
-}
-
-/*!
- Returns the parent of the model item with the given \a index.
-
- \sa index() hasChildren()
-*/
-
-QModelIndex QAbstractListModel::parent(const QModelIndex & /* index */) const
-{
- return QModelIndex();
-}
-
-/*!
- \internal
-
- Returns the number of columns in the list with the given \a parent.
-
- \sa rowCount()
-*/
-
-int QAbstractListModel::columnCount(const QModelIndex &parent) const
-{
- return parent.isValid() ? 0 : 1;
-}
-
-bool QAbstractListModel::hasChildren(const QModelIndex &parent) const
-{
- return parent.isValid() ? false : (rowCount() > 0);
-}
-
-/*!
- \typedef QModelIndexList
- \relates QModelIndex
-
- Synonym for QList<QModelIndex>.
-*/
-
-/*!
- \reimp
-*/
-bool QAbstractTableModel::dropMimeData(const QMimeData *data, Qt::DropAction action,
- int row, int column, const QModelIndex &parent)
-{
- if (!data || !(action == Qt::CopyAction || action == Qt::MoveAction))
- return false;
-
- QStringList types = mimeTypes();
- if (types.isEmpty())
- return false;
- QString format = types.at(0);
- if (!data->hasFormat(format))
- return false;
-
- QByteArray encoded = data->data(format);
- QDataStream stream(&encoded, QIODevice::ReadOnly);
-
- // if the drop is on an item, replace the data in the items
- if (parent.isValid() && row == -1 && column == -1) {
- int top = INT_MAX;
- int left = INT_MAX;
- QVector<int> rows, columns;
- QVector<QMap<int, QVariant> > data;
-
- while (!stream.atEnd()) {
- int r, c;
- QMap<int, QVariant> v;
- stream >> r >> c >> v;
- rows.append(r);
- columns.append(c);
- data.append(v);
- top = qMin(r, top);
- left = qMin(c, left);
- }
-
- for (int i = 0; i < data.size(); ++i) {
- int r = (rows.at(i) - top) + parent.row();
- int c = (columns.at(i) - left) + parent.column();
- if (hasIndex(r, c))
- setItemData(index(r, c), data.at(i));
- }
-
- return true;
- }
-
- // otherwise insert new rows for the data
- return decodeData(row, column, parent, stream);
-}
-
-/*!
- \reimp
-*/
-bool QAbstractListModel::dropMimeData(const QMimeData *data, Qt::DropAction action,
- int row, int column, const QModelIndex &parent)
-{
- if (!data || !(action == Qt::CopyAction || action == Qt::MoveAction))
- return false;
-
- QStringList types = mimeTypes();
- if (types.isEmpty())
- return false;
- QString format = types.at(0);
- if (!data->hasFormat(format))
- return false;
-
- QByteArray encoded = data->data(format);
- QDataStream stream(&encoded, QIODevice::ReadOnly);
-
- // if the drop is on an item, replace the data in the items
- if (parent.isValid() && row == -1 && column == -1) {
- int top = INT_MAX;
- int left = INT_MAX;
- QVector<int> rows, columns;
- QVector<QMap<int, QVariant> > data;
-
- while (!stream.atEnd()) {
- int r, c;
- QMap<int, QVariant> v;
- stream >> r >> c >> v;
- rows.append(r);
- columns.append(c);
- data.append(v);
- top = qMin(r, top);
- left = qMin(c, left);
- }
-
- for (int i = 0; i < data.size(); ++i) {
- int r = (rows.at(i) - top) + parent.row();
- if (columns.at(i) == left && hasIndex(r, 0))
- setItemData(index(r), data.at(i));
- }
-
- return true;
- }
-
- if (row == -1)
- row = rowCount(parent);
-
- // otherwise insert new rows for the data
- return decodeData(row, column, parent, stream);
-}
-
-/*!
- \fn QAbstractItemModel::modelAboutToBeReset()
- \since 4.2
-
- This signal is emitted when reset() is called, before the model's internal
- state (e.g. persistent model indexes) has been invalidated.
-
- \sa beginResetModel(), modelReset()
-*/
-
-/*!
- \fn QAbstractItemModel::modelReset()
- \since 4.1
-
- This signal is emitted when reset() is called, after the model's internal
- state (e.g. persistent model indexes) has been invalidated.
-
- \sa endResetModel(), modelAboutToBeReset()
-*/
-
-/*!
- \fn bool QModelIndex::operator<(const QModelIndex &other) const
- \since 4.1
-
- Returns true if this model index is smaller than the \a other
- model index; otherwise returns false.
-*/
-
-/*!
- \fn uint qHash(const QPersistentModelIndex &index)
- \since 4.5
-
- Returns a hash of the QPersistentModelIndex
- */
-
-
-/*!
- \internal
- QHash::insertMulti insert the value before the old value. and find() return the new value.
- We need insertMultiAtEnd because we don't want to overwrite the old one, which should be removed later
-
- There should be only one instance QPersistentModelIndexData per index, but in some intermediate state there may be
- severals of PersistantModelIndex pointing to the same index, but one is already updated, and the other one is not.
- This make sure than when updating the first one we don't overwrite the second one in the hash, and the second one
- will be updated right later.
- */
-void QAbstractItemModelPrivate::Persistent::insertMultiAtEnd(const QModelIndex& key, QPersistentModelIndexData *data)
-{
- QHash<QModelIndex,QPersistentModelIndexData *>::iterator newIt =
- indexes.insertMulti(key, data);
- QHash<QModelIndex,QPersistentModelIndexData *>::iterator it = newIt + 1;
- while (it != indexes.end() && it.key() == key) {
- qSwap(*newIt,*it);
- newIt = it;
- ++it;
- }
-}
-
-QT_END_NAMESPACE
diff --git a/src/corelib/kernel/qabstractitemmodel.h b/src/corelib/kernel/qabstractitemmodel.h
deleted file mode 100644
index 0aa8144602..0000000000
--- a/src/corelib/kernel/qabstractitemmodel.h
+++ /dev/null
@@ -1,412 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** This file may be used under the terms of the GNU Lesser General Public
-** License version 2.1 as published by the Free Software Foundation and
-** appearing in the file LICENSE.LGPL included in the packaging of this
-** file. Please review the following information to ensure the GNU Lesser
-** General Public License version 2.1 requirements will be met:
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QABSTRACTITEMMODEL_H
-#define QABSTRACTITEMMODEL_H
-
-#include <QtCore/qvariant.h>
-#include <QtCore/qobject.h>
-#include <QtCore/qhash.h>
-#include <QtCore/qset.h>
-
-QT_BEGIN_HEADER
-
-QT_BEGIN_NAMESPACE
-
-QT_MODULE(Core)
-
-class QAbstractItemModel;
-class QPersistentModelIndex;
-
-class Q_CORE_EXPORT QModelIndex
-{
- friend class QAbstractItemModel;
- friend class QProxyModel;
-public:
- inline QModelIndex() : r(-1), c(-1), p(0), m(0) {}
- inline QModelIndex(const QModelIndex &other)
- : r(other.r), c(other.c), p(other.p), m(other.m) {}
- inline ~QModelIndex() { p = 0; m = 0; }
- inline int row() const { return r; }
- inline int column() const { return c; }
- inline void *internalPointer() const { return p; }
- inline qint64 internalId() const { return reinterpret_cast<qint64>(p); }
- inline QModelIndex parent() const;
- inline QModelIndex sibling(int row, int column) const;
- inline QModelIndex child(int row, int column) const;
- inline QVariant data(int role = Qt::DisplayRole) const;
- inline Qt::ItemFlags flags() const;
- inline const QAbstractItemModel *model() const { return m; }
- inline bool isValid() const { return (r >= 0) && (c >= 0) && (m != 0); }
- inline bool operator==(const QModelIndex &other) const
- { return (other.r == r) && (other.p == p) && (other.c == c) && (other.m == m); }
- inline bool operator!=(const QModelIndex &other) const
- { return !(*this == other); }
- inline bool operator<(const QModelIndex &other) const
- {
- if (r < other.r) return true;
- if (r == other.r) {
- if (c < other.c) return true;
- if (c == other.c) {
- if (p < other.p) return true;
- if (p == other.p) return m < other.m;
- }
- }
- return false; }
-private:
- inline QModelIndex(int row, int column, void *ptr, const QAbstractItemModel *model);
- int r, c;
- void *p;
- const QAbstractItemModel *m;
-};
-Q_DECLARE_TYPEINFO(QModelIndex, Q_MOVABLE_TYPE);
-
-#ifndef QT_NO_DEBUG_STREAM
-Q_CORE_EXPORT QDebug operator<<(QDebug, const QModelIndex &);
-#endif
-
-class QPersistentModelIndexData;
-
-class Q_CORE_EXPORT QPersistentModelIndex
-{
-public:
- QPersistentModelIndex();
- QPersistentModelIndex(const QModelIndex &index);
- QPersistentModelIndex(const QPersistentModelIndex &other);
- ~QPersistentModelIndex();
- bool operator<(const QPersistentModelIndex &other) const;
- bool operator==(const QPersistentModelIndex &other) const;
- inline bool operator!=(const QPersistentModelIndex &other) const
- { return !operator==(other); }
- QPersistentModelIndex &operator=(const QPersistentModelIndex &other);
- bool operator==(const QModelIndex &other) const;
- bool operator!=(const QModelIndex &other) const;
- QPersistentModelIndex &operator=(const QModelIndex &other);
- operator const QModelIndex&() const;
- int row() const;
- int column() const;
- void *internalPointer() const;
- qint64 internalId() const;
- QModelIndex parent() const;
- QModelIndex sibling(int row, int column) const;
- QModelIndex child(int row, int column) const;
- QVariant data(int role = Qt::DisplayRole) const;
- Qt::ItemFlags flags() const;
- const QAbstractItemModel *model() const;
- bool isValid() const;
-private:
- QPersistentModelIndexData *d;
- friend uint qHash(const QPersistentModelIndex &);
-#ifndef QT_NO_DEBUG_STREAM
- friend Q_CORE_EXPORT QDebug operator<<(QDebug, const QPersistentModelIndex &);
-#endif
-};
-Q_DECLARE_TYPEINFO(QPersistentModelIndex, Q_MOVABLE_TYPE);
-
-inline uint qHash(const QPersistentModelIndex &index)
-{ return qHash(index.d); }
-
-
-#ifndef QT_NO_DEBUG_STREAM
-Q_CORE_EXPORT QDebug operator<<(QDebug, const QPersistentModelIndex &);
-#endif
-
-template<typename T> class QList;
-typedef QList<QModelIndex> QModelIndexList;
-
-class QMimeData;
-class QAbstractItemModelPrivate;
-template <class Key, class T> class QMap;
-
-
-class Q_CORE_EXPORT QAbstractItemModel : public QObject
-{
- Q_OBJECT
-
- friend class QPersistentModelIndexData;
- friend class QAbstractItemViewPrivate;
- friend class QIdentityProxyModel;
-public:
-
- explicit QAbstractItemModel(QObject *parent = 0);
- virtual ~QAbstractItemModel();
-
- bool hasIndex(int row, int column, const QModelIndex &parent = QModelIndex()) const;
- virtual QModelIndex index(int row, int column,
- const QModelIndex &parent = QModelIndex()) const = 0;
- virtual QModelIndex parent(const QModelIndex &child) const = 0;
-
- inline QModelIndex sibling(int row, int column, const QModelIndex &idx) const
- { return index(row, column, parent(idx)); }
-
- virtual int rowCount(const QModelIndex &parent = QModelIndex()) const = 0;
- virtual int columnCount(const QModelIndex &parent = QModelIndex()) const = 0;
- virtual bool hasChildren(const QModelIndex &parent = QModelIndex()) const;
-
- virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const = 0;
- virtual bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole);
-
- virtual QVariant headerData(int section, Qt::Orientation orientation,
- int role = Qt::DisplayRole) const;
- virtual bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value,
- int role = Qt::EditRole);
-
- virtual QMap<int, QVariant> itemData(const QModelIndex &index) const;
- virtual bool setItemData(const QModelIndex &index, const QMap<int, QVariant> &roles);
-
- virtual QStringList mimeTypes() const;
- virtual QMimeData *mimeData(const QModelIndexList &indexes) const;
- virtual bool dropMimeData(const QMimeData *data, Qt::DropAction action,
- int row, int column, const QModelIndex &parent);
- virtual Qt::DropActions supportedDropActions() const;
-
- Qt::DropActions supportedDragActions() const;
- void setSupportedDragActions(Qt::DropActions);
-
- virtual bool insertRows(int row, int count, const QModelIndex &parent = QModelIndex());
- virtual bool insertColumns(int column, int count, const QModelIndex &parent = QModelIndex());
- virtual bool removeRows(int row, int count, const QModelIndex &parent = QModelIndex());
- virtual bool removeColumns(int column, int count, const QModelIndex &parent = QModelIndex());
-
- inline bool insertRow(int row, const QModelIndex &parent = QModelIndex());
- inline bool insertColumn(int column, const QModelIndex &parent = QModelIndex());
- inline bool removeRow(int row, const QModelIndex &parent = QModelIndex());
- inline bool removeColumn(int column, const QModelIndex &parent = QModelIndex());
-
- virtual void fetchMore(const QModelIndex &parent);
- virtual bool canFetchMore(const QModelIndex &parent) const;
- virtual Qt::ItemFlags flags(const QModelIndex &index) const;
- virtual void sort(int column, Qt::SortOrder order = Qt::AscendingOrder);
- virtual QModelIndex buddy(const QModelIndex &index) const;
- virtual QModelIndexList match(const QModelIndex &start, int role,
- const QVariant &value, int hits = 1,
- Qt::MatchFlags flags =
- Qt::MatchFlags(Qt::MatchStartsWith|Qt::MatchWrap)) const;
- virtual QSize span(const QModelIndex &index) const;
-
- const QHash<int,QByteArray> &roleNames() const;
-
-#ifdef Q_NO_USING_KEYWORD
- inline QObject *parent() const { return QObject::parent(); }
-#else
- using QObject::parent;
-#endif
-
-Q_SIGNALS:
- void dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QSet<int> &roles = QSet<int>());
- void headerDataChanged(Qt::Orientation orientation, int first, int last);
- void layoutChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>());
- void layoutAboutToBeChanged(const QList<QPersistentModelIndex> &parents = QList<QPersistentModelIndex>());
-
-#if !defined(Q_MOC_RUN) && !defined(qdoc)
-private: // can only be emitted by QAbstractItemModel
-#endif
- void rowsAboutToBeInserted(const QModelIndex &parent, int first, int last);
- void rowsInserted(const QModelIndex &parent, int first, int last);
-
- void rowsAboutToBeRemoved(const QModelIndex &parent, int first, int last);
- void rowsRemoved(const QModelIndex &parent, int first, int last);
-
- void columnsAboutToBeInserted(const QModelIndex &parent, int first, int last);
- void columnsInserted(const QModelIndex &parent, int first, int last);
-
- void columnsAboutToBeRemoved(const QModelIndex &parent, int first, int last);
- void columnsRemoved(const QModelIndex &parent, int first, int last);
-
- void modelAboutToBeReset();
- void modelReset();
-
- void rowsAboutToBeMoved( const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationRow );
- void rowsMoved( const QModelIndex &parent, int start, int end, const QModelIndex &destination, int row );
-
- void columnsAboutToBeMoved( const QModelIndex &sourceParent, int sourceStart, int sourceEnd, const QModelIndex &destinationParent, int destinationColumn );
- void columnsMoved( const QModelIndex &parent, int start, int end, const QModelIndex &destination, int column );
-
-
-public Q_SLOTS:
- virtual bool submit();
- virtual void revert();
-
-protected:
- QAbstractItemModel(QAbstractItemModelPrivate &dd, QObject *parent = 0);
-
- inline QModelIndex createIndex(int row, int column, void *data = 0) const;
- inline QModelIndex createIndex(int row, int column, int id) const;
- inline QModelIndex createIndex(int row, int column, quint32 id) const;
-
- void encodeData(const QModelIndexList &indexes, QDataStream &stream) const;
- bool decodeData(int row, int column, const QModelIndex &parent, QDataStream &stream);
-
- void beginInsertRows(const QModelIndex &parent, int first, int last);
- void endInsertRows();
-
- void beginRemoveRows(const QModelIndex &parent, int first, int last);
- void endRemoveRows();
-
- bool beginMoveRows(const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationRow);
- void endMoveRows();
-
- void beginInsertColumns(const QModelIndex &parent, int first, int last);
- void endInsertColumns();
-
- void beginRemoveColumns(const QModelIndex &parent, int first, int last);
- void endRemoveColumns();
-
- bool beginMoveColumns(const QModelIndex &sourceParent, int sourceFirst, int sourceLast, const QModelIndex &destinationParent, int destinationColumn);
- void endMoveColumns();
-
- void reset();
-
- void beginResetModel();
- void endResetModel();
-
- void changePersistentIndex(const QModelIndex &from, const QModelIndex &to);
- void changePersistentIndexList(const QModelIndexList &from, const QModelIndexList &to);
- QModelIndexList persistentIndexList() const;
-
- void setRoleNames(const QHash<int,QByteArray> &roleNames);
-
-private:
- Q_DECLARE_PRIVATE(QAbstractItemModel)
- Q_DISABLE_COPY(QAbstractItemModel)
-};
-
-inline bool QAbstractItemModel::insertRow(int arow, const QModelIndex &aparent)
-{ return insertRows(arow, 1, aparent); }
-inline bool QAbstractItemModel::insertColumn(int acolumn, const QModelIndex &aparent)
-{ return insertColumns(acolumn, 1, aparent); }
-inline bool QAbstractItemModel::removeRow(int arow, const QModelIndex &aparent)
-{ return removeRows(arow, 1, aparent); }
-inline bool QAbstractItemModel::removeColumn(int acolumn, const QModelIndex &aparent)
-{ return removeColumns(acolumn, 1, aparent); }
-
-inline QModelIndex QAbstractItemModel::createIndex(int arow, int acolumn, void *adata) const
-{ return QModelIndex(arow, acolumn, adata, this); }
-inline QModelIndex QAbstractItemModel::createIndex(int arow, int acolumn, int aid) const
-#if defined(Q_CC_MSVC)
-#pragma warning( push )
-#pragma warning( disable : 4312 ) // avoid conversion warning on 64-bit
-#endif
-{ return QModelIndex(arow, acolumn, reinterpret_cast<void*>(aid), this); }
-#if defined(Q_CC_MSVC)
-#pragma warning( pop )
-#endif
-inline QModelIndex QAbstractItemModel::createIndex(int arow, int acolumn, quint32 aid) const
-#if defined(Q_CC_MSVC)
-#pragma warning( push )
-#pragma warning( disable : 4312 ) // avoid conversion warning on 64-bit
-#endif
-{ return QModelIndex(arow, acolumn, reinterpret_cast<void*>(aid), this); }
-#if defined(Q_CC_MSVC)
-#pragma warning( pop )
-#endif
-
-
-class Q_CORE_EXPORT QAbstractTableModel : public QAbstractItemModel
-{
- Q_OBJECT
-
-public:
- explicit QAbstractTableModel(QObject *parent = 0);
- ~QAbstractTableModel();
-
- QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
- bool dropMimeData(const QMimeData *data, Qt::DropAction action,
- int row, int column, const QModelIndex &parent);
-protected:
- QAbstractTableModel(QAbstractItemModelPrivate &dd, QObject *parent);
-
-private:
- Q_DISABLE_COPY(QAbstractTableModel)
- QModelIndex parent(const QModelIndex &child) const;
- bool hasChildren(const QModelIndex &parent) const;
-};
-
-class Q_CORE_EXPORT QAbstractListModel : public QAbstractItemModel
-{
- Q_OBJECT
-
-public:
- explicit QAbstractListModel(QObject *parent = 0);
- ~QAbstractListModel();
-
- QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) const;
- bool dropMimeData(const QMimeData *data, Qt::DropAction action,
- int row, int column, const QModelIndex &parent);
-protected:
- QAbstractListModel(QAbstractItemModelPrivate &dd, QObject *parent);
-
-private:
- Q_DISABLE_COPY(QAbstractListModel)
- QModelIndex parent(const QModelIndex &child) const;
- int columnCount(const QModelIndex &parent) const;
- bool hasChildren(const QModelIndex &parent) const;
-};
-
-// inline implementations
-
-inline QModelIndex::QModelIndex(int arow, int acolumn, void *adata,
- const QAbstractItemModel *amodel)
- : r(arow), c(acolumn), p(adata), m(amodel) {}
-
-inline QModelIndex QModelIndex::parent() const
-{ return m ? m->parent(*this) : QModelIndex(); }
-
-inline QModelIndex QModelIndex::sibling(int arow, int acolumn) const
-{ return m ? (r == arow && c == acolumn) ? *this : m->index(arow, acolumn, m->parent(*this)) : QModelIndex(); }
-
-inline QModelIndex QModelIndex::child(int arow, int acolumn) const
-{ return m ? m->index(arow, acolumn, *this) : QModelIndex(); }
-
-inline QVariant QModelIndex::data(int arole) const
-{ return m ? m->data(*this, arole) : QVariant(); }
-
-inline Qt::ItemFlags QModelIndex::flags() const
-{ return m ? m->flags(*this) : Qt::ItemFlags(0); }
-
-inline uint qHash(const QModelIndex &index)
-{ return uint((index.row() << 4) + index.column() + index.internalId()); }
-
-QT_END_NAMESPACE
-
-QT_END_HEADER
-
-#endif // QABSTRACTITEMMODEL_H
diff --git a/src/corelib/kernel/qabstractitemmodel_p.h b/src/corelib/kernel/qabstractitemmodel_p.h
deleted file mode 100644
index 86680dd0bc..0000000000
--- a/src/corelib/kernel/qabstractitemmodel_p.h
+++ /dev/null
@@ -1,176 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** This file may be used under the terms of the GNU Lesser General Public
-** License version 2.1 as published by the Free Software Foundation and
-** appearing in the file LICENSE.LGPL included in the packaging of this
-** file. Please review the following information to ensure the GNU Lesser
-** General Public License version 2.1 requirements will be met:
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QABSTRACTITEMMODEL_P_H
-#define QABSTRACTITEMMODEL_P_H
-
-//
-// W A R N I N G
-// -------------
-//
-// This file is not part of the Qt API. It exists for the convenience
-// of QAbstractItemModel*. This header file may change from version
-// to version without notice, or even be removed.
-//
-// We mean it.
-//
-//
-
-#include "private/qobject_p.h"
-#include "QtCore/qstack.h"
-#include "QtCore/qset.h"
-#include "QtCore/qhash.h"
-
-QT_BEGIN_NAMESPACE
-
-class QPersistentModelIndexData
-{
-public:
- QPersistentModelIndexData() : model(0) {}
- QPersistentModelIndexData(const QModelIndex &idx) : index(idx), model(idx.model()) {}
- QModelIndex index;
- QAtomicInt ref;
- const QAbstractItemModel *model;
- static QPersistentModelIndexData *create(const QModelIndex &index);
- static void destroy(QPersistentModelIndexData *data);
-};
-
-class Q_CORE_EXPORT QAbstractItemModelPrivate : public QObjectPrivate
-{
- Q_DECLARE_PUBLIC(QAbstractItemModel)
-
-public:
- QAbstractItemModelPrivate() : QObjectPrivate(), supportedDragActions(-1), roleNames(defaultRoleNames()) {}
- void removePersistentIndexData(QPersistentModelIndexData *data);
- void movePersistentIndexes(QVector<QPersistentModelIndexData *> indexes, int change, const QModelIndex &parent, Qt::Orientation orientation);
- void rowsAboutToBeInserted(const QModelIndex &parent, int first, int last);
- void rowsInserted(const QModelIndex &parent, int first, int last);
- void rowsAboutToBeRemoved(const QModelIndex &parent, int first, int last);
- void rowsRemoved(const QModelIndex &parent, int first, int last);
- void columnsAboutToBeInserted(const QModelIndex &parent, int first, int last);
- void columnsInserted(const QModelIndex &parent, int first, int last);
- void columnsAboutToBeRemoved(const QModelIndex &parent, int first, int last);
- void columnsRemoved(const QModelIndex &parent, int first, int last);
- static QAbstractItemModel *staticEmptyModel();
- static bool variantLessThan(const QVariant &v1, const QVariant &v2);
-
- void itemsAboutToBeMoved(const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation);
- void itemsMoved(const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation orientation);
- bool allowMove(const QModelIndex &srcParent, int srcFirst, int srcLast, const QModelIndex &destinationParent, int destinationChild, Qt::Orientation orientation);
-
- inline QModelIndex createIndex(int row, int column, void *data = 0) const {
- return q_func()->createIndex(row, column, data);
- }
-
- inline QModelIndex createIndex(int row, int column, int id) const {
- return q_func()->createIndex(row, column, id);
- }
-
- inline bool indexValid(const QModelIndex &index) const {
- return (index.row() >= 0) && (index.column() >= 0) && (index.model() == q_func());
- }
-
- inline void invalidatePersistentIndexes() {
- foreach (QPersistentModelIndexData *data, persistent.indexes) {
- data->index = QModelIndex();
- data->model = 0;
- }
- persistent.indexes.clear();
- }
-
- /*!
- \internal
- clean the QPersistentModelIndex relative to the index if there is one.
- To be used before an index is invalided
- */
- inline void invalidatePersistentIndex(const QModelIndex &index) {
- QHash<QModelIndex, QPersistentModelIndexData *>::iterator it = persistent.indexes.find(index);
- if(it != persistent.indexes.end()) {
- QPersistentModelIndexData *data = *it;
- persistent.indexes.erase(it);
- data->index = QModelIndex();
- data->model = 0;
- }
- }
-
- struct Change {
- Change() : first(-1), last(-1) {}
- Change(const Change &c) : parent(c.parent), first(c.first), last(c.last), needsAdjust(c.needsAdjust) {}
- Change(const QModelIndex &p, int f, int l) : parent(p), first(f), last(l), needsAdjust(false) {}
- QModelIndex parent;
- int first, last;
-
-
- // In cases such as this:
- // - A
- // - B
- // - C
- // - - D
- // - - E
- // - - F
- //
- // If B is moved to above E, C is the source parent in the signal and its row is 2. When the move is
- // completed however, C is at row 1 and there is no row 2 at the same level in the model at all.
- // The QModelIndex is adjusted to correct that in those cases before reporting it though the
- // rowsMoved signal.
- bool needsAdjust;
-
- bool isValid() { return first >= 0 && last >= 0; }
- };
- QStack<Change> changes;
-
- struct Persistent {
- Persistent() {}
- QHash<QModelIndex, QPersistentModelIndexData *> indexes;
- QStack<QVector<QPersistentModelIndexData *> > moved;
- QStack<QVector<QPersistentModelIndexData *> > invalidated;
- void insertMultiAtEnd(const QModelIndex& key, QPersistentModelIndexData *data);
- } persistent;
-
- Qt::DropActions supportedDragActions;
-
- QHash<int,QByteArray> roleNames;
- static const QHash<int,QByteArray> &defaultRoleNames();
-};
-
-QT_END_NAMESPACE
-
-#endif // QABSTRACTITEMMODEL_P_H
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-09 04:44:00 +0000